Astronomy has done its work: a two-horse race, and a funnel that, on the Wednesday, left only one year. But the sky alone does not exclude AD 30, nor the traditional AD 33. The next question is therefore not astronomical but biographical: which years does the career of Jesus allow? When was He baptised, how long did His public ministry last, and where does the crucifixion land when you add those two together? This is the ministry window, and I shall draw it as honestly as I can — including the places where it does not compel me.
Let me therefore state at the outset what this chapter does and does not do, for the temptation to overclaim is greatest here. The window admits AD 31, and on the readings I shall defend, AD 31 even fits it naturally. But the window does not compel AD 31. The anchors this book works with — the fifteenth year of Tiberius, the forty-six years of the temple-building — are each of them stretchable or reversible, and a practised opponent reads a different year out of them. Whoever claims that the chronology proves AD 31 overtaxes it. What it does is more modest: it shows that AD 31 falls comfortably within the career, and that the rivals each require an adjustment of their own — whose adjustment is the better founded stands, honestly counted, close to even (see the countercase below). The decision between the years does not fall here; it falls on the day axis, and this chapter supplies to that only the boundary condition.
Begin at the beginning: the baptism. Luke dates the appearance of John the Baptist — and with it, shortly afterwards, the baptism of Jesus — in "the fifteenth year of the reign of the emperor Tiberius" (Luke 3:1). That sounds precise, and it is not, for it depends on when you let Tiberius' reign begin. If one counts from his sole rule, after the death of Augustus in the year 14 — the count most ancient sources follow — then the fifteenth year is roughly AD 28/29, and the baptism falls in 28 or 29. If one counts from the autumn, inclusively — on the Syro-Macedonian calendar of the province, or on a Jewish year from Tishri, which here give the same result — then that same fifteenth year runs from the autumn of 27 to the autumn of 28, and the baptism falls in the autumn of 27. The latter is the count on which this book works — but I say at once that it is not the best-attested one. The ordinary sole-rule count is better confirmed, and it gives a later baptism. And whichever of the three one takes: the fifteenth year does not fix the crucifixion year — not 30, not 31, not 33; the decision between the years falls not here, but on the day.
Expertthe three counts of "the fifteenth year"
Luke's pentekaidekaton etos (Luke 3:1) can be computed in three ways. (1) Sole rule, from 14 — the count of the seven classical witnesses (Tacitus, Suetonius, Dio, Philo, Josephus, Clement, Tertullian, who all set Tiberius' reign at ~22–23 years from 14) and of the full coin evidence: fifteenth year ≈ AD 28/29. (2) Co-regency, from 12/13 — juridically an equal right in all provinces and armies (aequum ius, Velleius 2.121.1: "ut aequum ei ius in omnibus provinciis exercitibusque esset, quam erat ipsi") existed from 12/13, documented in Velleius, Suetonius and Tacitus and publicly dated on the coins of Lugdunum (RIC I² Tiberius 225–226, "TR POT XV", with Augustus still living): fifteenth year ≈ AD 26/27. This count is thus real and well grounded — it makes an early baptism historically possible — but no ancient source demonstrably counts Tiberius' regnal years from that point (see the Excursus). Available, not compelling. (3) Autumn count, inclusive from 14: fifteenth year = autumn 27–autumn 28. It has two frames, and both are named here. The one is the Syro-Macedonian calendar of the province, new year in October (1 October with Blinzler and Finegan, 20 October with Doig); it is the frame of Hoehner, Blinzler, Doig and Finegan, and the workbench below traces its footnotes. The other is a Jewish year from Tishri: Smallwood takes Luke's count as "presumably by Jewish reckoning" and has the fifteenth year run "from October 27" (1976, p. 168 n. 82); its rabbinic ground is split, Tishri in the Bavli and Nisan in the Yerushalmi (the workbench on the Jewish reckoning below). In AD 14 both new years fell after the news of Augustus' death can have arrived, so the two frames give the same year. This book uses the third — a calculated date on a construed manner of counting, not a documented one. Marked honestly: the first count is the strongest, and it gives a baptism in 28/29.
Dossierthe footnote beneath "the fifteenth year", traced to the bottom
The third count — Syrian-inclusive, fifteenth year = autumn 27–autumn 28 — is the manner of counting by which this book extracts the baptism of 27 from Luke 3:1, and honesty demands that I show its foundation, including where it is brittle. It appears at its sharpest in the scholarly literature in Hoehner (1977), who calls it "method 3" and dates the fifteenth year to "21 September 27 to 8 October 28". Walk through his footnotes, and they do not carry that date. His load-bearing note invokes Mommsen (Römisches Staatsrecht II.2, 802–804) for the claim that Syria counted the Roman emperors from the autumn — but those pages in Mommsen deal with the Bildnissrecht, the right to the imperial portrait on the coinage; there is no Syria there, no Seleucids, no new year, no regnal-year count. Cichorius (1923), Hoehner's own authority for the exact dates, leans in the same question on precisely the same Mommsen pages — two footnotes, independently, to a passage that does not carry it. And Kraeling (1942), the best-founded defender of "27/28", concedes in his own note 18: there are no coins proving that Tiberius was counted that way; the double dating that pins the autumn boundary is Nero's, not Tiberius'.
This I must count in full against my own side, for I lay the same measure on both. The only direct, double-dated Tiberius piece — the Antiochene coin (RPC I 4270), "(year) 1 [...] (Actian year) 45" — dates Tiberius' year 1 to AD 14/15, and thereby sets the fifteenth year, on its own Actian calendar, at 28/29, not at 27/28. The inclusive 27/28 reading, which would carry AD 31 on a three-and-a-half-year ministry, is thus the reading the only double-dated piece does not give. How much that coin can say is limited, and the dossier "the reckoning flank" below sets out why: it measures the pagan provincial count, and there the news of Augustus' death arrived after the new year, so that inclusive and non-inclusive reckoning give the same year 1; it fixes the era, it does not discriminate between the systems. Unattested, then, and not refuted: not probable, but not impossible; and on the fifteenth year itself the best-measured reading (28/29) stands on the side of AD 33, not of this book. I do not choose 27/28, therefore, because it rescues AD 31 — that would break the standing rule. What the find does yield is modest and symmetrical: the heaviest chronological entry against the Wednesday, Luke's fifteenth year, is even in the standard monograph no clean measurement but a footnote chain that ends in coin-portrait law. The fifteenth year pins nothing down, and the decision between the years does not fall here, but on the day (see the main text above). [DOCUMENTED — Mommsen II.2³ 802–804 and Kraeling, ATR 24 (1942) 346, seen at first hand; RPC I 4270 at first hand; the conversion CALCULATED]
The ground both invoke is an old tradition, and this book does not lean on it. Blinzler and Finegan both appeal to Luke as a Syrian of Antioch — a reading that exists, that has not been refuted, and that makes a Syro-Macedonian autumn count more natural in his hands. It is named here and not carried. Its witnesses are late and their dating is disputed, and an origin is not a mode of counting. This book's AD 27 baptism rests on the autumn count itself — booked as unattested and not refuted, in the workbench on the reckoning flank below — and not on Luke's birthplace. Whoever accepts the Antiochene origin gains nothing here that the book needs; whoever rejects it costs the book nothing. [CONSTRUED]
Why then the autumn count nonetheless, and the baptism in 27? Not because Luke compels it — he does not — but because a second, independent anchor points in that direction: the forty-six years of the temple. When Jesus at His first Passover cleanses the temple and speaks of tearing it down and rebuilding it, the Jews answer: "Forty-six years this temple has been in building, and You will raise it up in three days?" (John 2:20). That number can be used, for the starting point of Herod's temple-building can be brought sharp enough — though it is not uncontested, and the workbench below writes out why: he began in his eighteenth regnal year, which via an independent Roman anchor — the visit of Augustus to Syria — comes down to 20/19 BC (Josephus, Antiquitates 15.380; Cassius Dio 54.7). That Herodian framework — accession in 40 BC, the taking of Jerusalem in 37 BC, the eighteenth year around 20/19 — has, incidentally, recently been defended afresh along a wholly independent route: not through the well-known lunar eclipse before Herod's death, but through the timeline of the Parthian War, where Ventidius' movements in Appian and Livy are preferred to Plutarch and Dio (Lanser, 2021), against the revision that places Herod's reign a year later (Filmer, 1966; Steinmann & Young, 2020); the starting point of the temple thus rests on more than a single anchor. Forty-six years later comes out at AD 27/28. If that is the first Passover of the ministry, it accords with a baptism in the autumn of 27 — and then the clock counts from there. The form of that choice must be named, for I name it in others. It is a convergence choice, not a measurement: the count is taken because a second anchor agrees with it, and had John 2:20 pointed to 29, the same reasoning would have chosen the non-inclusive count. The surviving alternative, a baptism in 29 on the non-inclusive count, is cheaper only if the crucifixion is already placed in 33; on its own terms it is set aside here on a ground that is valid within the book's chronology but circular with respect to the ministry length that is then derived from it. The count is therefore construal, booked as such in appendix D; and AD 31 does not rest on it alone, for the decision falls on the day (ch. 7–8).
Dossierthe arithmetic of the window
The starting point of the temple. Herod's eighteenth year = 20/19 BC (Josephus, Ant. 15.380). What anchors it is not a counting convention but Josephus' own sequence: Ant. 15.354 puts Augustus' arrival in Syria in the seventeenth year, that visit is fixed on the Roman side at 20 BC (Dio 54.7), and the eighteenth year follows directly. Add forty-six years (there is no year zero) = AD 27/28 → first Passover in the spring of 28.
The rival figure. Josephus gives two. Bellum Judaicum (BJ) 1.401 puts the rebuilding in the fifteenth year. Counted from the appointment (40 BC), the 18th year is 23/22 and the 15th 26/25; counted from the capture of Jerusalem (37 BC), the 18th year is 20/19 and the 15th 23/22. Only the 18th year on the capture meets the Syrian visit. And the fifteenth-year figure serves nobody's reckoning: add 46 and you land in AD 21/22 or AD 24/25 — too early for every candidate, for AD 30 as much as for 31 and 33. Whoever lets it count is left with no John 2:20 arithmetic at all.
What follows. The 46-year route is less sharp than every party treats it — this book included, up to this line. It stays here as the second anchor beside the autumn count, but without the word "fixed": the starting point hangs on Josephus' sequence in Ant. 15.354, not on the one figure this book happened to pick. [DOCUMENTED — Ant. 15.354, 15.380 and BJ 1.401 checked in the primary text; CONSTRUED — the weighing]
The addition towards the crucifixion year. The year depends on two choices — the baptism and the number of Passovers:
baptism
+ 3 Passovers (ministry ~2.5 yrs)
+ 4 Passovers (ministry ~3.5 yrs)
autumn 27 (autumn count)
AD 30
AD 31
autumn 28/29 (sole rule)
AD 31
AD 32/33
The lower bound. Pilate took up office by 26/27 at the latest (Josephus, Ant. 18.32–35); a baptism in the autumn of 27 falls neatly behind that. The book's chronology is thus: baptism autumn 27, first Passover 28, four Passovers, crucifixion AD 31 — verifiable, but dependent on two construed choices, and that is stated honestly beside it. [CALCULATED]
Then the third link, and it is the hinge between AD 30 and AD 31: how many Passovers does the ministry count? John names three of them expressly: at the cleansing of the temple (2:13), at the multiplication of the loaves (6:4), and just before the passion (11:55). The question is whether there is a fourth: the nameless "feast of the Jews" in John 5:1. If that too is a Passover, the ministry counts four Passovers and lasts about three and a half years; if it is not, three remain and it lasts about two and a half. And the year hangs on that: four Passovers from the baptism in 27 brings the crucifixion to AD 31; three brings it to AD 30. This book reads John 5:1 as a Passover — not out of arithmetical convenience, but because the earliest witnesses read it so: Irenaeus, around the year 180, counts the nameless feast as "the second time" that Jesus went up for the Passover (Irenaeus, Adversus Haereses 2.22.3), and Eusebius, around 315, expressly gives the length of the ministry as "three and a half years, and this the evangelist John makes clear" (Eusebius, Demonstratio Evangelica 8.2). The early reception thus reads four Passovers and three and a half years. (In fairness, and it is said every time: Irenaeus drew from his own count a conclusion no one has followed — that Jesus was approaching fifty and ministered for more than ten years, 2.22.5–6. His count is adopted, not his conclusion.) What remains honest has been measured: the nameless feast is and remains nameless, a shorter ministry is not excluded (ch. 14), and the extra spring is support and not compulsion. The dossier below sets out the test that established that, including the two criteria it failed; the registered form, with the criteria in table and the corpus gap that keeps it open, stands in appendix E.3.
Dossierthe extra spring: a test fixed in advance, and it did not compel
The reading that inserts a spring between John 2:13 and John 6:4 carries, on this book's route, the whole difference between AD 30 and AD 31. It was therefore put to a test whose criteria were written down before the sources were read: three that would have to be met for the extra spring, three that would tell against it. No criterion was adjusted along the way. The outcome is possible, not compelled, and it is entered here in that form.
Of the three for, criterion 1 was not met — a constraint that would force the plucking of the grain (Matt. 12:1; Mark 2:23; Luke 6:1) after the Passover of John 2:13 independently of the assumed Judaea–Galilee order. The synoptists themselves disagree on where the incident belongs: Matthew sets it after the Baptist's question from prison, Mark and Luke long before, ahead of the calling of the Twelve. At least one of them is not ordering chronologically here, and Mark 2:1–3:6 is a thematically arranged series of controversies. Criterion 2 was not met either — a seasonal reading of John 4:35 ("yet four months, and the harvest") that would exclude the proverb reading. The seasonal reading turned out stronger than expected, and no such proverb is attested anywhere; but the commentary tradition is divided and does not divide in a way that settles it. Criterion 3 was met — the early reception of John 5:1 — and in its own wording, as support. Of the three against, two were met (the Judaea–Galilee order rests on a harmonisation the synoptists do not claim; the third leg re-uses the material of the first) and one was not: the tradition is not predominantly proverb-reading, and it does contain readers who take the four months as a real interval and build no chronology on it.
And the author on whom the reading leans claims no more than that. Hoehner writes that the plucking of the grain "would fit well" between the two Passovers (1977, p. 56). That is not a compelling argument, and he does not offer it as one. Further: his two supports cannot both be used. He reads John 5:1 "with great hesitation" as Tabernacles rather than as a Passover, calls Blinzler's claim that a three-year ministry requires 5:1 to be a Passover "false", and his Tabernacles argument rests in turn on the seasonal reading of 4:35 — "If 5:1 were the next Passover, it would come immediately after 4:35" (1977, pp. 58–59). Whoever runs the Hoehner package cannot run Irenaeus at the same time, for Irenaeus' whole point is that 5:1 is a Passover. This book therefore carries one route and not both: the early reception, as support, with Irenaeus' own untenable conclusion named beside it — and not Hoehner's ordering as an independent leg.
What that costs, said plainly: the four-Passover reading may not be presented as compelled, and earlier versions of this book presented it more strongly than the test bears. What it does not cost: the reading is not special pleading. It is a respectable reading that merely does not force. And the result runs the same way in both directions — on this axis AD 31 is admissible and not indicated, and AD 30, which needs exactly three Passovers, is equally not indicated. The axis is undecided, and the decision falls elsewhere. [DOCUMENTED — Hoehner, 1977, pp. 56 and 58–59, seen at first hand; the criteria fixed before the reading]
Countercasethe chronology that points away from AD 31
Let the opposing party make its strongest move here, for it has one. The best-attested count of Luke 3:1 — the sole rule from 14, carried by seven ancient witnesses and the full coin evidence — gives a baptism in 28/29, not in 27 (Steinmann, 2022a). And the forty-six years of John 2:20 can, on strict grammar, be read precisely the other way round: take the dative etesin as a point in time ("forty-six years ago") rather than as a duration, and the word naos in its narrow sense of the sanctuary building completed as early as 18 BC, and the saying comes out at ~AD 29/30 and the crucifixion at AD 33 (Steinmann, 2022b). Two anchors, and both can be bent towards AD 33 — the year of the reigning dating. Whoever defends AD 31 must therefore choose the less usual branch at both anchors. That is a real burden, and I shall not talk my way around it.
The answer is not that the opposing party is wrong, but that the situation is more symmetrical than it seems. For a structural compulsion lies beneath it. The natural, majority reading of John 2:20 (duration, first Passover ~27/28) and the best-attested reading of Luke 3:1 (28/29 → baptism 29) are mutually incompatible — the first Passover would then fall before the baptism. Every chronologist must therefore adjust one of them. This book holds fast to the majority John 2:20 and adjusts Luke 3:1 (the autumn count, baptism 27). The defender of AD 33 holds fast to the majority Luke 3:1 and adjusts John 2:20 (the narrow naos, point-in-time). The question is not "who is cheating", but "whose adjustment is the better founded" — and on that point it stands, honestly counted, close to even.
Dossierthe naos of John 2:20, measured against Josephus' own usage
The reversal reading above hangs on one lexical hinge: that "temple" in John 2:20 is the Greek naos, and that naos strictly means the sanctuary building — completed as early as around 18 BC, so that "forty-six years" would point to a moment in the past rather than to a building still in progress. The distinction naos (the sanctuary) versus hieron (the whole complex) is a real tendency in the New Testament. But whether it compels here can be tested against the witness who stands closest to it: Josephus, who describes precisely this temple in Greek. And his own usage does not carry the strict reading.
Josephus does narrow naos in the technical building account — "the naos itself was built by the priests in a year and six months" (Ant. 15.421). But that very sentence undermines the reversal reading: were "forty-six years" the building time of the naos itself, it could not be right, for that sanctuary stood in a year and a half. And elsewhere Josephus uses the word broadly: "they build the naos [...] and have drawn the colonnades and the walls around it" (Ant. 11.87) — a naos with colonnades and walls is the whole temple work, not the cella alone. The lexica point the same way: the foundational dictionary (LSJ) gives as the first sense of naos "the temple" (the building as a whole); the narrow sense "cella" is the derived, second sense, and the New Testament restriction is a contextual particularity, not a property of the word.
This tips "forty-six years" back to the majority reading — the temple the speakers had watched rising before their eyes for forty-six years (and longer: the work continued until about AD 63) — and with it to the first Passover in 27/28 and the crucifixion in 30/31. It makes AD 33 harder, but — and this is the honest limit — it does not exclude it: the grammatical supports of the reversal reading (the dative as a point in time, the aorist as completed) stand apart from the lexis and survive. John 2:20 thus remains what the note on the sources says it is: a reversible anchor, which under the majority reading fits AD 31 and can be bent towards AD 33 by a practised opponent — no hard anchor, but one that, measured against Josephus' own usage, leans slightly towards the pair 30/31. [DOCUMENTED for Josephus' usage — Ant. 15.421 and 11.87 (Greek); CONSTRUED for the weighing]
Reis (2025, p. 3) reckons along the same axis, but from the other end. He places the start of the building at the end of 21 or the spring of 20 BC, has the work finished some 18 months later (18/17 BC), and counts the forty-six years of John 2:20 from that completion: the first Passover then falls in AD 30 — the opening of a ministry that, in his chronology, ends on the cross in 33. That start — "ten years after Actium" — is not Josephus' figure but Reis' own inference: Josephus dates the beginning by a regnal year alone, and against his own anchor (Ant. 15.354) Reis comes out one year early; his result does not change for it. His AD 30 is a first Passover, then, not the crucifixion year that chapter 14 weighs. And those 18 months are Josephus' figure for the naos itself (Ant. 15.421) — the very datum this workbench measures above. His variant therefore adds no new evidence; it is the reversal reading counted in the other direction. This book counts the forty-six years from the start of the work and arrives at 27/28; he counts them from the end of the same year and a half and arrives three years later. Laid beside Steinmann's reckoning, his is not a second witness for the reversal reading but the same one: both rest on the narrow naos, and that narrow sense is, measured against Josephus' own usage, the derived meaning and not the first. [DOCUMENTED for Reis' reckoning — Reis (2025), p. 3; CONSTRUED for the weighing]
See how the two axes relate, for there lies the honesty of the whole. On the chronological axis AD 31 is admissible and, on the readings of this book, natural — but not compelling; AD 30 and AD 33 each remain alive, each at the price of an adjustment of its own. The chronology, then, does not choose. What chooses is the day: the sign of Jonah that asks three nights, the two sabbaths, the fourteenth of Nisan — and of the years the career allows, there is exactly one with a Wednesday 14 Nisan inside that window, and that is AD 31. The ministry window is the sieve; the day is the hand that reaches through the sieve.
And here belongs a distinction that carries the whole book, and I write it out deliberately. The baptism in the year 27 is derived in this chapter from ordinary history — Luke 3:1 and John 2:20 — and from nothing else. That is deliberate, but not in order to keep Daniel outside the door. For there is a second road to that same year 27, and it is strong: the seventy weeks of Daniel, the restoration decree of 458 BC, counted from 457, the four hundred and eighty-three years to the Anointed One — 457 + 483 comes out at the year 27, the anointing, the end of the sixty-nine weeks. And there, at the baptism, the two roads meet: the emperor and the temple (Luke 3:1, John 2:20) and the prophet both point to AD 27. That is a second route arriving at the same year — and I carry it as convergence, not as support: the historical route of this chapter stands fully intact without it, and Appendix F shows what the weighing does when the 457-line is removed (ch. 16). What Daniel says about the end is deliberately wider: "after the sixty-two sevens an anointed one shall be cut off" (Daniel 9:26) — "after", not "in the midst". The prophecy thus pins the beginning and opens a window; it does not compel the crucifixion year, and it need not. What closes that window is not Daniel but the ministry: it lasts at most three and a half years (the four Passovers of John — carried as support and not as compulsion, per the dossier on the extra spring) and at least two, and at the far edge of that the cross falls in the spring of 31. That is a prophetic line, but — and this is the decisive word — a prophetic line that is measurable: it has a documented decree, a verifiable count and an end point that coincides at the baptism with the emperor, the temple and the Passovers. Precisely for that reason I keep the two roads separate here — not to hide the prophecy, but to let its convergence count. Two independent routes arriving at one year weigh more than one, and that remains true only so long as one does not let them lean on each other. Whoever rejects the historicist premise of the seventy weeks keeps the historical route of this chapter fully intact; whoever accepts it gains a second, measurable confirmation. The full working-out of that prophetic line — in this book's own reading, with the seventieth week of Daniel 9:27 still future — comes later; here it counts as what it is: a measurable second witness, with its premise open on the table.
Excursusthe route this book does not take, and the honest two-against-two
Two honesties belong here, and the first costs this book an argument. A popular support for an early baptism is in circulation: coins from Antioch said to count Tiberius' reign from 11/12 already. Those coins do not exist — and that rests not on one old judgement but on the modern coin evidence itself. Eckhel unmasked the types in question (from the Thesaurus Morellianus) as early as 1794, and numismatics has only strengthened that since: the standard corpus Roman Provincial Coinage contains the real Antiochene coins (the Silanus issues, RPC I 4270/4271), which double-date Tiberius' first year to the Actian year 45 = AD 14, hence from the death of Augustus — the opposite of what the phantom types are invoked for. Fotheringham (1934) judged their authenticity indefensible; and a recent inventory of some two hundred dated coin types, supplemented with Egyptian inscriptions and papyri, finds year marks running exclusively from 14/15 to 36/37 — nowhere the years 24–26 that a provincial count from 11/12 would require (Steinmann, 2022a). Those phantom coins, then, this book does not use. But the co-regency itself is a different datum, and it stands: the equal right (aequum ius) of ~12/13 is a documented constitutional fact, publicly dated on the real coins of Lugdunum (RIC I² Tiberius 225–226, "TR POT XV", with Augustus still living), and it makes an early baptism count historically possible. Only: no ancient reckoner demonstrably counts Tiberius' regnal years from that point. A recent numismatic attempt to do just that (Lanser, 2026) leans on precisely these Antiochene coins and on an older thesis about the Actian era (Kubitschek, 1890) — but that thesis concerns the province of Macedonia, not Syria, and its author himself warns that "Macedonian" datings elsewhere refer to derived calendars; the Silanus coins themselves date Tiberius' regnal year 1 to the Actian year 45 = AD 14/15, with the title Sebastos that he bore only after the death of Augustus in the summer of 14. The count from 14 stands, then, even in Luke's own city. This book therefore carries the co-regency as an available, well-grounded but non-load-bearing line — while the AD 27 baptism rests on the autumn count. I say that aloud, for the measure I lay against an opponent — no phantom evidence — holds here against myself.
The second honesty is a piece of bookkeeping. Both camps adjust exactly two awkward texts to their date. The defender of the Friday stretches "three days and three nights" (ch. 3) and narrows the naos of John 2:20. This book reads two texts against the usual branch: the "third day" of Luke 24:21 (ch. 13) and the count of the fifteenth year. It is two against two. That the case stands so is no weakness to hide but the honest starting position: neither side reads all the texts effortlessly, and the weighing turns on which two adjustments the corpus carries better — not on who alone adjusts.
Dossierthe direct count: where Tiberius' regnal years were measured
Behind the sentence "Egyptian inscriptions and papyri, finding year marks running exclusively from 14/15 to 36/37" lies a documentary corpus worth writing out, for it is the count nearest to Luke's own world. In the Egyptian papyrus and ostraca material, collected in Bureth's standard repertory, Tiberius' first year stands at 14/15 — and not from an editorial decision alone: under "year 1 of Tiberius" stand some fifteen dated pieces. Had Egypt applied the ordinary "stub" convention (the accession year as year 1, however short), that year 1 would cover only the ten days between Augustus' death (19 August 14) and the Egyptian new year (1 Thoth, 29 August) — and fifteen documents from ten days, in a province that could not yet have received the news from Rome, is not credible.
That the stub convention was the norm in Egypt — Nero's fourteenth year, the year of his death, is abundantly attested there — makes the exception under Tiberius precisely explicable, and one papyrus supplies the mechanism. P.Oxy. VII 1021 announces the death of Claudius in Oxyrhynchus as news and is already dated "year 1 of Nero" — thirty-five days after the death, and still as news. Applied to Augustus' death, the news reaches Egypt only in late September 14 — after 1 Thoth. There was no stub year to open, for by the time it was known, the new Egyptian year had already begun. No anomaly, but arithmetic.
That same count stands on coin in Judaea itself. The prefects Valerius Gratus and Pontius Pilate struck at Jerusalem on Tiberius' regnal years: Gratus' years 2 to 11 (AD 15–24), Pilate's years 16 to 18 (AD 29–31) — and each of these falls within their terms of office known from Josephus only if Tiberius' year 1 falls in 14/15. Under a count from the co-regency (12/13), Gratus' "year 2" would fall in AD 13, when he was not yet prefect and Tiberius not yet emperor. The direct, primary count thus sets Tiberius' epoch unanimously at 14/15 — what the Excursus established numismatically now also stands documentarily (and, as set out there, does not carry the co-regency as the counter of the AD 27 baptism). [DOCUMENTED — Bureth (1964) 25; P.Oxy. VII 1021 and RPC I 4958–4969, seen at first hand; the conversions CALCULATED]
Dossierthe "twenty-second" of Antiquitates 18.106, and why it does not exist in the Greek
Beneath the epoch of Tiberius — and beneath the dating of Herod's death — runs a second front, and it is textual. Josephus writes that Philip died "in the twentieth year of Tiberius' rule", after "thirty-seven years" of tetrarchy (Ant. 18.106). Philip's own coins bear that 37th year (RPC I 4952–4953, on the era beginning at Herod's death in 4 BC), and so the passage anchors that year of death — the anchor that carries ch. 10. Whoever wants to move Herod to 1 BC therefore needs a different reading, and it exists: part of the Latin tradition reads "the twenty-second year" (Filmer, 1966; Beyer, 1998). Were it to stand, the anchor would fall — and so it too belongs tested here, with the same rigour I lay against an opponent elsewhere.
It does not stand, and Niese's critical apparatus says why. "εἰκοστῷ" — the twentieth — is uniform in all Greek witnesses (the manuscripts A, M, W and the Epitome); the only witness for "twenty-two" is the old Latin translation. More than that: Niese's asterisk before the lemma is his own sign that the Epitome — a Greek branch independent of the main text — reads with the text at this point, and it thus positively confirms "twenty" and "thirty-seven". And the Latin branch that supplies "twenty-two" supplies in the same sentence not "thirty-seven" but "thirty-two" tetrarchy years (other Latin manuscripts: "thirty-five"). No one — not a single witness — reads "22 + 37". And precisely that pair of numbers is what the early dating needs; it is a contamination, the year from the Latin and the regnal figure from the Greek. A witness that demonstrably garbles the second number of the sentence does not carry the first. The "twentieth" stands, and with it the Philip anchor of ch. 10 — even though the epoch of 14/15 that follows from it does not lie to this book's advantage. And the passage costs more than the epoch. Twenty plus thirty-seven from 4 BC gives 33/34, which on an inclusive count would be the twenty-first year: the sentence is a numbered regnal year of a Roman emperor, written by a Jewish narrator, reckoned non-inclusively. It is the sharpest single witness against the autumn-inclusive count on which this book's baptism of 27 depends, and it is weighed as such in the dossier on the reckoning flank below rather than left standing here as an anchor only. [DOCUMENTED — Niese, Opera IV (1890) 160 with apparatus, seen at first hand; Jachowski, 2015]
Dossierthe reckoning flank, registered: unattested, not refuted
This is the heaviest open entry in the book, and it is set down here in the only form it can be carried.
What is measured. Every attested reckoning of Tiberius' regnal years puts year 1 in AD 14/15 — Antioch (RPC I 4270), Seleucia (RPC I 4330), Alexandria (RPC I 5075–5105, the series running to year 23 and stopping there). None puts it in 13/14. *(The literary witnesses — Philo, Josephus, Tacitus, Dio — are of a different kind and are not counted in that list: they give the reign's duration, twenty-two and a half to twenty-three years, and a duration says how long a reign lasted, not how a dating formula numbers its fifteenth year. They fix the epoch at 14, and the Kenner box above cites them for exactly that; they do not fix the numbering. The distinction is entered against my own side elsewhere; it is entered here as well, because it holds in both directions.)* The autumn-inclusive count from which this book takes the baptism of 27 is therefore attested nowhere for Tiberius. Doig, the one author who reaches autumn 27 along it, has an analogy with Herodian practice and no document, and concedes that the Roman coins reckon dynastically. And the one modern defender of an inclusive count from 14, Meier, lands on AD 28 and not on autumn 27 — established here on secondary reports of his position and not on his own pages, and marked as such.
Why the word is nevertheless unattested and not refuted. What the autumn count needs is that Tiberius' accession stub was itself numbered year 1. Neither corpus can test that. Augustus died on 19 August 14; the Egyptian new year (1 Thoth) fell on 29 August and the Actian new year on 2 September, and the news cannot have reached Alexandria or Antioch before either — P.Oxy. VII 1021, in the dossier above, still reported such a death as news thirty-five days later. Both cities therefore begin numbering at the first new year after the news arrived, and that yields year 1 = 14/15 under inclusive and non-inclusive reckoning alike. The coins fix the era; they do not discriminate between the systems. What they do exclude is a stub numbered retroactively, before the news had come; the autumn count does not need that. The only calendars on which the question lived — the Dios autumn, new year 20 October, and a Jewish Tishri year, 1 Tishri on 14 October on the Babylonian months, both after the news had come — have left no document dated by Tiberius at all. So the corpus is structurally unable to answer the question that is asked of it, and absence of evidence cuts both ways here, exactly as this book insists elsewhere that it does. [DOCUMENTED — RPC I 4270, 4330, 5075–5105; P.Oxy. VII 1021; CALCULATED — the news interval and the new-year arithmetic]
What stands on the other side is Jewish, and the fullest survey does not contain it. Steinmann concludes that "there is no evidence for inclusive reckoning of Tiberius's reign" (2022a, p. 115). That conclusion holds for the corpus he searched, and that corpus is Roman, Greek and Egyptian: the Latin historians, Philo, Josephus, Alexandrian and Syrian coins, Latin and Greek inscriptions. The Jewish halakhic material does not appear in it — and that material prescribes precisely the reckoning he finds no trace of, for precisely the same use: the dating of a document. m. Rosh ha-Shanah 1:1 sets the new year for kings on 1 Nisan; the Gemara asks what that serves halakhically, and Rav Ḥisda answers li-shetarot, "for documents". Then the baraita: "a king who acceded on the twenty-ninth of Adar — once the first of Nisan arrives, a year is reckoned to him; and if he acceded only on the first of Nisan, no year is reckoned to him until the next Nisan comes" (b. Rosh ha-Shanah 2a). One day of reign before the new year counts as a whole regnal year. That is non-accession, inclusive reckoning, written out, with its application attached.
Two links stay open, and I name them before an opponent finds them. First, the date of the source: the Mishnah is around 200, and the baraita, though presented as tannaitic, stands in the Bavli; that the rule already held in the first century is plausible and not demonstrated. Second, the application to a foreign ruler: the rule is framed for kings of Israel, and whether Jewish datings of a Roman emperor followed it is a separate question. Neither gap is filled by wanting it filled.
And a third point follows from the rule itself, and it cuts against me.m. Rosh ha-Shanah 1:1 counts from 1 Nisan. Applied to Tiberius, who acceded on 19 August 14, it makes the stub up to Nisan 15 his first year and puts his fifteenth year from Nisan 28 to Nisan 29 — not at the autumn of 27. The rule cited here for the principle of inclusive reckoning does not by itself give this book's date.
On the second link the rabbis speak, and they disagree. The Bavli limits the Nisan rule to Israel's own kings: "lo shanu ella le-malkhei Yisra'el, aval le-malkhei ummot ha-olam mi-Tishri maninan", "Rav Ḥisda said: they taught this only for the kings of Israel; but for the kings of the nations of the world we count from Tishri" (b. Rosh ha-Shanah 3a, derived from Nehemiah 1:1 and 2:1, Kislev and Nisan in the same twentieth year of Artaxerxes). At 8a Rav Pappa reads the Mishnah's "1 Tishri is the new year for years" in the same way, as the rule for documents, and the Gemara reconciles the two: Nisan for the kings of Israel, Tishri for the kings of the nations. On that rule a Roman emperor's fifteenth year runs from Tishri 27, and the news-rule of the coin corpora does not change that: on the Babylonian months 1 Tishri AD 14 fell on 14 October (Parker & Dubberstein), after the news of 19 August can have reached Judea. The Yerushalmi says the opposite: "af le-malkhei ummot ha-olam ein monin ella mi-Nisan", "R. Eleazar in the name of R. Ḥanina: for the kings of the nations of the world, too, one counts only from Nisan" (y. Rosh ha-Shanah 1:1), derived from Haggai 1:15 and Zechariah 1:1, the sixth and the eighth month in the same second year of Darius. Three limits belong with that. Both rules are amoraic, of the third and fourth centuries, and both are derived from the dates of Persian kings in Scripture, not from a practice under Rome. The Bavli must itself keep its rule standing against Haggai and Ezra with ad hoc answers — Cyrus counted like an Israelite king because he was virtuous, Cyrus, Darius and Artaxerxes one man, Nisan before his fall and Tishri after it (3b–4a) — and at 8a two other amoraim read "for years" without documents at all. And the Palestinian voice, the nearer one to Luke's Judea, is the one that says Nisan. Stern's reading of P. Mur. 18 below, Nero counted from Nisan, stands on that side. The Jewish material thus offers both a Tishri 27 and a Nisan 28, it does not choose between them, and a Tishri count for a Roman emperor is available on it, not attested. [DOCUMENTED — m. RH 1:1; b. RH 2a, 3a–4a, 8a; y. RH 1:1 (Sefaria); CALCULATED — the year count]
On that second link there is published expert support — and a published expert against it, in the same breath. Sacha Stern, discussing P. Mur. 18, holds that "the second regnal year of Nero may have begun, according to the Jewish computation, in Nisan of 55 CE", and notes: "Nero became emperor on 13 October 54 CE, but this would not normally have been reckoned as the starting-date of his regnal years (pace Benoit, Milik, and de Vaux 1961: 103) [...] For rabbinic evidence of regnal years beginning in Nisan, see M. RH 1:1, Y. RH 1:1 (56b), B. RH 2a–b" (Calendar and Community, pp. 92–93 with n. 333). Nero acceded on 13 October 54; if his second year began in Nisan 55, his first was the stub from October to Nisan. That is inclusive reckoning of a Roman emperor's years in a Jewish document, held by the standard monograph on the Jewish calendar. Against it stands the editor of that very document: "'An deux de Néron' correspond à 13 octobre 55 – 12 octobre 56" (Benoit, Milik & de Vaux, DJD II, p. 103) — the accession-anniversary count, from the man who had the papyrus in his hands. And Stern writes "may have begun", and adds himself that "the possibility of scribal error must always be taken into account". Support, then, and not establishment. And support for the principle only: Stern's Nisan count gives the fifteenth year from Nisan 28, not from the autumn of 27 (above).
The test that was registered in advance came back undecidable, and that is entered here in full. Before the text was opened I set down what would settle it: Mur 18 should carry a regnal formula, and its month would separate the two readings, since a date in the spring or summer of 55 is year 2 only on Stern's reckoning and still year 1 on Milik's. The formula is there. The month is not. Milik's own translation reads "[Le [...] du mois [...] a]n deux de Néron César" — the square brackets are his restoration, and day and month both lie in the lacuna (DJD II, p. 103, seen at first hand). The document that was to decide cannot decide — not "not yet", but not at all. I record the registered test as undecided, in the same place and the same type in which I would have recorded it had it fallen my way.
And the sharpest thing against my own route is Jewish too, and it stands a paragraph above.Ant. 18.106 dates Philip's death to the twentieth year of Tiberius, after thirty-seven years of tetrarchy from 4 BC — that is 33/34. On an inclusive count 33/34 would be the twenty-first year. Here, then, a Jewish narrator gives a numbered regnal year of a Roman emperor in a synchronism, and he numbers it non-inclusively. It is the nearest thing in this whole dossier to the case Mur 18 was to have supplied, and it runs against me. The halakhic rule shows that the reckoning my chain needs was written down somewhere; Ant. 18.106 shows that the one Jewish writer whose numbering can actually be read did not use it. Both belong on the page, and the second is the reason the flank stays open. The balance, then: the autumn-inclusive count is not probable, but not impossible. [DOCUMENTED — Steinmann, 2022a, p. 115; m. RH 1:1 and b. RH 2a in the Hebrew and Aramaic; Stern, pp. 92–93 with n. 333; DJD II, p. 103; Josephus, Ant. 18.106 with Niese's apparatus]
One word on the author I lean on here, for he excludes my year by name. Steinmann's conclusion is that the evidence "calls into question AD 30 or 31 (or any year before AD 30) as possible years of Jesus's crucifixion", and that "the testimony of the combined evidence from the Gospels for a ministry of about three and a half years supports AD 33 as the correct year of the crucifixion" (2022a, p. 116). I use his measurement and not his outcome, and the reason that is permitted can be checked by anyone with the article open. The two arguments rest on different material and neither derives from the other: the first is a count of coins, papyri and inscriptions; the second is a claim about the length of the ministry, and it enters his own concluding sentence as a premise — "since the Gospels' testimony [...] indicates a ministry for Jesus of over two years" — not as a result of the survey. Whoever accepts the first is not thereby bound to the second. That the second tells against me is registered here and in the dossier on the extra spring, in the main text and not in a footnote.
Where does the investigation stand, then, at the end of the year axis? Astronomy gave the candidates; the ministry said which years it allows; and the answer is that AD 31 is admitted and fits naturally, without the chronology compelling it. The day points to the middle of the week, the year admits AD 31, and the career houses it. Three lines, none of which decides alone, but which come together at one point: one week, in the spring of the year 31. And that week — the seven days of dying and rising — can now, at last, be told.
HeartHEART
Behind the numbers lies a patience. Forty-six years men built at a temple of stone, and they mocked the One who said that He would raise up a greater in three days — the temple of His body. Three and a half years He went about, and the clock ticked, slowly, towards the week for which He had come. Imperial years and Passovers are counted in order to know when; but beneath the when lies a why that no date can hold. He did not hurry. He let the years run their full measure — the baptism, the ministry, the last ascent to Jerusalem — until all was fulfilled. There is comfort in a God who comes on time, and who does not fear time.
Note on the sources
The regnal counts of Tiberius, the starting point of the temple-building and Pilate's accession to office have been tested against the primary sources (Josephus, Dio) and against the numismatic standard work; the AD 27 baptism rests on a construed (autumn-inclusive) manner of counting, and is marked as such. The epoch of Tiberius (year 1 = 14/15) has been tested against the direct documentary count — the Egyptian papyrus and ostraca corpus (Bureth), P.Oxy. VII 1021 for the delay of the news, and the Judaean prefect coins (RPC I); the "22nd year" variant of Antiquitates 18.106, which would move Herod's death to 1 BC, has been refuted on Niese's critical apparatus (uniform "20th" in the Greek, the Epitome confirming "20 + 37"). The Syrian-inclusive "method 3", on which the AD 27 baptism from Luke 3:1 rests, is the weakest of the counts: its footnote chain (Hoehner → Cichorius → Mommsen II.2, 802–804) ends in coin-portrait law, and the only direct Tiberius coin (RPC I 4270) reads 28/29 on its own Actian calendar, and it cannot discriminate between inclusive and non-inclusive reckoning (workbench); on balance the count is not probable, but not impossible — this book therefore carries it as a construed, not a documented count — though autumn 27 as a reading is carried by a standard monograph (Blinzler, Der Prozess Jesu) and the standard handbook (Finegan, Table 163), on the ground of Luke's Antiochene origin — an old tradition this book names but does not carry (see the workbench above): an interpretive support, not an attestation — and lets the AD 27 baptism rest on John 2:20 and on the window of Luke's count, not on the precision of the fifteenth year. That count is registered as unattested and not refuted: no document attests it for Tiberius, and the two coin corpora that might have tested it cannot, because the accession stub had already elapsed at both new years before the news of Augustus' death could arrive. What stands against Steinmann's "no evidence for inclusive reckoning" is Jewish and outside his corpus — m. Rosh ha-Shanah 1:1 with the baraita of b. Rosh ha-Shanah 2a, both consulted in the Hebrew and Aramaic, with two links openly left open (the date of the source, and the application to a foreign ruler); Stern's reading of P. Mur. 18 (pp. 92–93, n. 333) supplies published support for the second link and Milik's own note on DJD II p. 103 the published reading against it. The test on Mur 18 was registered in advance and came back undecidable: day and month lie in the lacuna. Against the whole of it stands Ant. 18.106, a Jewish narrator numbering a Roman emperor's year non-inclusively, and it is entered with the same weight. Josephus' own broad use of naos (Ant. 11.87, 15.421) supports the majority reading of John 2:20 without grammatically excluding AD 33. The forty-six years of John 2:20 is a reversible anchor: consistent with AD 31 under the majority reading, but bendable towards AD 33 by an opponent — it is therefore no hard anchor, and it is not carried as one. The four-Passover reading (and with it the three-and-a-half-year ministry) rests on the early reception (Irenaeus, Eusebius) and remains construed. It was tested on criteria fixed before the reading: two of the three criteria for it were not met, Hoehner claims no more for it than "would fit well" (1977, p. 56), and his Tabernacles reading of John 5:1 excludes the Irenaeus line rather than reinforcing it (pp. 58–59). It is therefore carried as support and not as compulsion, and Irenaeus' own conclusion — a ministry of more than ten years — is named beside his count every time it is used. The test is registered in full in appendix E.3, together with the part of its minimum corpus that has not been reached, and its outcome is entered in the register of assumptions (appendix D.2). The first of Steinmann's two arguments is registered as a finding in favour of this case and the second against it, in appendix E.5. The AD 27 baptism is derived in this chapter from the historical anchors (Luke 3:1, John 2:20), independently of Daniel; the prophetic line of the seventy weeks (457 BC + 483 = 27) converges verifiably on the same year and counts as a measurable second witness — its historicist premise is marked, and the full working-out stands elsewhere. This chapter claims a proof for neither side.
Literature (APA)
Barrett, C. K. (1978). The Gospel according to St John (2nd ed.). Westminster Press. [consulted, not cited in this chapter]
Benoit, P., Milik, J. T., & de Vaux, R. (1961). Les grottes de Murabbaʿât (Discoveries in the Judaean Desert II). Clarendon Press. (P. Mur. 18 at p. 103, seen at first hand: day and month of the date fall in the lacuna; Milik's note reckons "year two of Nero" as 13 October 55 – 12 October 56.)
Beyer, D. W. (1998). Josephus reexamined: Unraveling the twenty-second year of Tiberius. In J. Vardaman (Ed.), Chronos, kairos, Christos II (pp. 85–96). Mercer University Press. (Defends the "22nd year" reading of Ant. 18.106; refuted on Niese's Greek apparatus — see Jachowski.)
Brown, R. E. (1966). The Gospel according to John (I–XII) (Anchor Bible 29). Doubleday. [consulted, not cited in this chapter]
Blinzler, J. (1955). Der Prozess Jesu (2nd, expanded ed.). Friedrich Pustet. (Sets the fifteenth year at Oct 1, 27 – Sept 30, 28 on the Syrian count, "to be presupposed precisely in Luke as a born Syrian"; own crucifixion year AD 30, two-year ministry, but leaves AD 31 open.)
Bureth, P. (1964). Les titulatures impériales dans les papyrus, les ostraca et les inscriptions d'Égypte (30 a.C.–284 p.C.). Fondation Égyptologique Reine Élisabeth.
Cichorius, C. (1923). Chronologisches zum Leben Jesu. Zeitschrift für die neutestamentliche Wissenschaft, 22, 16–20. (Leans, for the autumn count of the fifteenth year, on Mommsen, Röm. Staatsrecht II 803 f. — pages that treat the Bildnissrecht.)
Doig, K. F. (1990). New Testament chronology. Mellen. (Ch. 12: the fifteenth year on the Syro-Macedonian autumn calendar, 20 October 27 – 9 October 28. The calendar boundaries have been recomputed here and come out to the day; the reckoning rests on an analogy with Herodian practice, and Doig concedes that the Roman coins reckon dynastically.)
Eusebius of Caesarea. (1920). The proof of the Gospel (Demonstratio Evangelica) (W. J. Ferrar, Trans.; Book 8, ch. 2). SPCK.
Filmer, W. E. (1966). The chronology of the reign of Herod the Great. Journal of Theological Studies, 17(2), 283–298.
Finegan, J. (1998). Handbook of biblical chronology (rev. ed.). Hendrickson. (Table 163 sets Tiberius' fifteenth year — counted from the death of Augustus, Syro-Macedonian, non-accession — at Oct 1, 27 – Sept 30, 28, identical with Blinzler; §579 raises this provincial reading on the ground of Luke's Antiochene origin, §580 declines it and adopts AD 29, Table 169.)
Fotheringham, J. K. (1934). The evidence of astronomy and technical chronology for the date of the crucifixion. Journal of Theological Studies, 35, 146–162.
Hoehner, H. W. (1977). Chronological aspects of the life of Christ (pp. 29–43, 56, 58–59). Zondervan. ("Would fit well" for the plucking of the grain at p. 56; the Tabernacles reading of John 5:1, "with great hesitation", and the "false" against Blinzler at pp. 58–59. Seen at first hand.)
Irenaeus of Lyons. (1885). Against heresies (Ante-Nicene Fathers, Vol. 1; Book 2, ch. 22, §3). Christian Literature Company.
Jachowski, R. J. (2015). The death of Herod the Great and the Latin Josephus: Re-examining the twenty-second year of Tiberius. Journal of Greco-Roman Christianity and Judaism, 11, 9–18.
Kubitschek, W. (1890). Jahrzählung und Jahranfang im römischen Makedonien. Archäologisch-epigraphische Mittheilungen aus Österreich-Ungarn, 13(1), 120–124. (Concerns the Macedonian era; expressly warns that "Macedonian" datings elsewhere refer to derived calendars.)
Lanser, R. (2021). The Parthian War paradigm and the reign of Herod the Great. Near East Archaeological Society Bulletin, 66, 21–36. (Refutes, with Appian BC 5.65 and Livy Per. 127, Steinmann and Young's claim that Ventidius left only after Misenum. His own reconstruction — Ventidius in Judea in 40, Herod named king in early October 40 — does not stand against Josephus' winter, Ant. 14.376 and War 1.279, nor against Dio 48.41.4–5.)
Lanser, R. (2026, January 13). The first regnal year of Tiberius as indicated on Roman coins [Daniel 9:24–27 Project]. Associates for Biblical Research. (Revives the co-regency count; on the Antiochene Silanus coins themselves, however, Tiberius' year 1 begins in AD 14/15.)
Meier, J. P. (1991). A marginal Jew: Rethinking the historical Jesus (Vol. 1, pp. 384–386). Doubleday. (Reckons Tiberius' years inclusively from the sole rule and arrives at AD 28, not at autumn 27. His position is established here on concurring secondary reports; his own pages have not been seen, and he is therefore not quoted.)
Mommsen, T. (1887). Römisches Staatsrecht (Vol. 2, Pt. 2, 3rd ed.). S. Hirzel. (The pages cited, 802–804, treat the Bildnissrecht — the right to the imperial portrait on the coinage — not the Syrian regnal-year count that Hoehner and Cichorius derive from them.)
Niese, B. (Ed.). (1890). Flavii Iosephi opera: Vol. 4. Antiquitatum Iudaicarum libri XVI–XX. Weidmann. (Critical edition with apparatus; Ant. 18.106 at p. 160.)
Parker, R. A., & Dubberstein, W. H. (1946). Babylonian chronology 626 B.C.–A.D. 45 (Studies in Ancient Oriental Civilization 24). University of Chicago Press. [Used: the month table for AD 14, Tashritu 1 = 14 October; ch. 9, the Tishri count.]
Smallwood, E. M. (1976). The Jews under Roman rule from Pompey to Diocletian (Studies in Judaism in Late Antiquity 20). Brill. [p. 168 n. 82: the fifteenth year "presumably by Jewish reckoning", "from October 27".]
Steinmann, A. E. (2022a). Reckoning Tiberius's reign and Jesus's baptism: First- and second-century evidence concerning Tiberius's fifteenth year (Luke 3:1). Tyndale Bulletin, 73, 91–118. https://doi.org/10.53751/001c.37789 ("No evidence for inclusive reckoning of Tiberius's reign" at p. 115; the conclusion excluding AD 30 and AD 31 by name, and supporting AD 33, at p. 116. Seen at first hand. His corpus is Roman, Greek and Egyptian and contains no Jewish halakhic material.)
Steinmann, A. E. (2022b). The temple built in forty-six years: John 2:20 and the date of Jesus' first Passover. Journal of the Evangelical Theological Society, 65(2), 319–331.
Steinmann, A. E., & Young, R. C. (2020). Consular and sabbatical years in Herod's life. Bibliotheca Sacra, 177(708), 442–461.
Stern, S. (2001). Calendar and community: A history of the Jewish calendar, 2nd century BCE–10th century CE (pp. 92–93, with n. 333). Oxford University Press. (Nero's second regnal year "may have begun, according to the Jewish computation, in Nisan of 55 CE", pace Milik; with m. RH 1:1, y. RH 1:1 (56b) and b. RH 2a–b as the rabbinic evidence. Seen at first hand; y. RH 1:1 consulted on 28 September 2026 (Sefaria, Guggenheimer): R. Eleazar in the name of R. Ḥanina counts the kings of the nations, too, from Nisan.)
Primary texts: Luke 3:1, 23 · John 2:13, 2:20; 4:35; 5:1; 6:4; 11:55 · Matthew 12:1 · Mark 2:23 · Luke 6:1 · Josephus, Antiquitates Judaicae 11.87; 15.354, 15.380, 15.420–421; Bellum Judaicum 1.401; 18.32–35, 18.106 (with Niese's apparatus) · Cassius Dio, Historia Romana 54.7; 58.28.5 · Nehemiah 1:1; 2:1 · Haggai 1:15 · Zechariah 1:1 · Mishnah, Rosh ha-Shanah 1:1 · Babylonian Talmud, Rosh ha-Shanah 2a, 3a–4a, 8a · Jerusalem Talmud, Rosh ha-Shanah 1:1 · P. Mur. 18 (DJD II, p. 103) · P.Oxy. VII 1021 (announcement of Nero's accession) · Roman Provincial Coinage I 4270, 4330, 4952–4953, 4958–4969, 5075–5105. Reference for the Tiberius count: Kraeling, Anglican Theological Review 24 (1942) 345–346 (note 18: "no coins prove it" for Tiberius); Mommsen, Römisches Staatsrecht II.2³ (1887) 802–804. Greek/Latin via the standard editions; my own working translation.
Astronomy has done its work: a two-horse race, and a funnel that, on the Wednesday, left only one year. But the sky alone does not exclude AD 30, nor the traditional AD 33. The next question is therefore not astronomical but biographical: which years does the career of Jesus allow? When was He baptised, how long did His public ministry last, and where does the crucifixion land when you add those two together? This is the ministry window, and I shall draw it as honestly as I can — including the places where it does not compel me.
Let me therefore state at the outset what this chapter does and does not do, for the temptation to overclaim is greatest here. The window admits AD 31, and on the readings I shall defend, AD 31 even fits it naturally. But the window does not compel AD 31. The anchors this book works with — the fifteenth year of Tiberius, the forty-six years of the temple-building — are each of them stretchable or reversible, and a practised opponent reads a different year out of them. Whoever claims that the chronology proves AD 31 overtaxes it. What it does is more modest: it shows that AD 31 falls comfortably within the career, and that the rivals each require an adjustment of their own — whose adjustment is the better founded stands, honestly counted, close to even (see the countercase below). The decision between the years does not fall here; it falls on the day axis, and this chapter supplies to that only the boundary condition.
Begin at the beginning: the baptism. Luke dates the appearance of John the Baptist — and with it, shortly afterwards, the baptism of Jesus — in "the fifteenth year of the reign of the emperor Tiberius" (Luke 3:1). That sounds precise, and it is not, for it depends on when you let Tiberius' reign begin. If one counts from his sole rule, after the death of Augustus in the year 14 — the count most ancient sources follow — then the fifteenth year is roughly AD 28/29, and the baptism falls in 28 or 29. If one counts from the autumn, inclusively — on the Syro-Macedonian calendar of the province, or on a Jewish year from Tishri, which here give the same result — then that same fifteenth year runs from the autumn of 27 to the autumn of 28, and the baptism falls in the autumn of 27. The latter is the count on which this book works — but I say at once that it is not the best-attested one. The ordinary sole-rule count is better confirmed, and it gives a later baptism. And whichever of the three one takes: the fifteenth year does not fix the crucifixion year — not 30, not 31, not 33; the decision between the years falls not here, but on the day.
Expertthe three counts of "the fifteenth year"
Luke's pentekaidekaton etos (Luke 3:1) can be computed in three ways. (1) Sole rule, from 14 — the count of the seven classical witnesses (Tacitus, Suetonius, Dio, Philo, Josephus, Clement, Tertullian, who all set Tiberius' reign at ~22–23 years from 14) and of the full coin evidence: fifteenth year ≈ AD 28/29. (2) Co-regency, from 12/13 — juridically an equal right in all provinces and armies (aequum ius, Velleius 2.121.1: "ut aequum ei ius in omnibus provinciis exercitibusque esset, quam erat ipsi") existed from 12/13, documented in Velleius, Suetonius and Tacitus and publicly dated on the coins of Lugdunum (RIC I² Tiberius 225–226, "TR POT XV", with Augustus still living): fifteenth year ≈ AD 26/27. This count is thus real and well grounded — it makes an early baptism historically possible — but no ancient source demonstrably counts Tiberius' regnal years from that point (see the Excursus). Available, not compelling. (3) Autumn count, inclusive from 14: fifteenth year = autumn 27–autumn 28. It has two frames, and both are named here. The one is the Syro-Macedonian calendar of the province, new year in October (1 October with Blinzler and Finegan, 20 October with Doig); it is the frame of Hoehner, Blinzler, Doig and Finegan, and the workbench below traces its footnotes. The other is a Jewish year from Tishri: Smallwood takes Luke's count as "presumably by Jewish reckoning" and has the fifteenth year run "from October 27" (1976, p. 168 n. 82); its rabbinic ground is split, Tishri in the Bavli and Nisan in the Yerushalmi (the workbench on the Jewish reckoning below). In AD 14 both new years fell after the news of Augustus' death can have arrived, so the two frames give the same year. This book uses the third — a calculated date on a construed manner of counting, not a documented one. Marked honestly: the first count is the strongest, and it gives a baptism in 28/29.
Dossierthe footnote beneath "the fifteenth year", traced to the bottom
The third count — Syrian-inclusive, fifteenth year = autumn 27–autumn 28 — is the manner of counting by which this book extracts the baptism of 27 from Luke 3:1, and honesty demands that I show its foundation, including where it is brittle. It appears at its sharpest in the scholarly literature in Hoehner (1977), who calls it "method 3" and dates the fifteenth year to "21 September 27 to 8 October 28". Walk through his footnotes, and they do not carry that date. His load-bearing note invokes Mommsen (Römisches Staatsrecht II.2, 802–804) for the claim that Syria counted the Roman emperors from the autumn — but those pages in Mommsen deal with the Bildnissrecht, the right to the imperial portrait on the coinage; there is no Syria there, no Seleucids, no new year, no regnal-year count. Cichorius (1923), Hoehner's own authority for the exact dates, leans in the same question on precisely the same Mommsen pages — two footnotes, independently, to a passage that does not carry it. And Kraeling (1942), the best-founded defender of "27/28", concedes in his own note 18: there are no coins proving that Tiberius was counted that way; the double dating that pins the autumn boundary is Nero's, not Tiberius'.
This I must count in full against my own side, for I lay the same measure on both. The only direct, double-dated Tiberius piece — the Antiochene coin (RPC I 4270), "(year) 1 [...] (Actian year) 45" — dates Tiberius' year 1 to AD 14/15, and thereby sets the fifteenth year, on its own Actian calendar, at 28/29, not at 27/28. The inclusive 27/28 reading, which would carry AD 31 on a three-and-a-half-year ministry, is thus the reading the only double-dated piece does not give. How much that coin can say is limited, and the dossier "the reckoning flank" below sets out why: it measures the pagan provincial count, and there the news of Augustus' death arrived after the new year, so that inclusive and non-inclusive reckoning give the same year 1; it fixes the era, it does not discriminate between the systems. Unattested, then, and not refuted: not probable, but not impossible; and on the fifteenth year itself the best-measured reading (28/29) stands on the side of AD 33, not of this book. I do not choose 27/28, therefore, because it rescues AD 31 — that would break the standing rule. What the find does yield is modest and symmetrical: the heaviest chronological entry against the Wednesday, Luke's fifteenth year, is even in the standard monograph no clean measurement but a footnote chain that ends in coin-portrait law. The fifteenth year pins nothing down, and the decision between the years does not fall here, but on the day (see the main text above). [DOCUMENTED — Mommsen II.2³ 802–804 and Kraeling, ATR 24 (1942) 346, seen at first hand; RPC I 4270 at first hand; the conversion CALCULATED]
The ground both invoke is an old tradition, and this book does not lean on it. Blinzler and Finegan both appeal to Luke as a Syrian of Antioch — a reading that exists, that has not been refuted, and that makes a Syro-Macedonian autumn count more natural in his hands. It is named here and not carried. Its witnesses are late and their dating is disputed, and an origin is not a mode of counting. This book's AD 27 baptism rests on the autumn count itself — booked as unattested and not refuted, in the workbench on the reckoning flank below — and not on Luke's birthplace. Whoever accepts the Antiochene origin gains nothing here that the book needs; whoever rejects it costs the book nothing. [CONSTRUED]
Why then the autumn count nonetheless, and the baptism in 27? Not because Luke compels it — he does not — but because a second, independent anchor points in that direction: the forty-six years of the temple. When Jesus at His first Passover cleanses the temple and speaks of tearing it down and rebuilding it, the Jews answer: "Forty-six years this temple has been in building, and You will raise it up in three days?" (John 2:20). That number can be used, for the starting point of Herod's temple-building can be brought sharp enough — though it is not uncontested, and the workbench below writes out why: he began in his eighteenth regnal year, which via an independent Roman anchor — the visit of Augustus to Syria — comes down to 20/19 BC (Josephus, Antiquitates 15.380; Cassius Dio 54.7). That Herodian framework — accession in 40 BC, the taking of Jerusalem in 37 BC, the eighteenth year around 20/19 — has, incidentally, recently been defended afresh along a wholly independent route: not through the well-known lunar eclipse before Herod's death, but through the timeline of the Parthian War, where Ventidius' movements in Appian and Livy are preferred to Plutarch and Dio (Lanser, 2021), against the revision that places Herod's reign a year later (Filmer, 1966; Steinmann & Young, 2020); the starting point of the temple thus rests on more than a single anchor. Forty-six years later comes out at AD 27/28. If that is the first Passover of the ministry, it accords with a baptism in the autumn of 27 — and then the clock counts from there. The form of that choice must be named, for I name it in others. It is a convergence choice, not a measurement: the count is taken because a second anchor agrees with it, and had John 2:20 pointed to 29, the same reasoning would have chosen the non-inclusive count. The surviving alternative, a baptism in 29 on the non-inclusive count, is cheaper only if the crucifixion is already placed in 33; on its own terms it is set aside here on a ground that is valid within the book's chronology but circular with respect to the ministry length that is then derived from it. The count is therefore construal, booked as such in appendix D; and AD 31 does not rest on it alone, for the decision falls on the day (ch. 7–8).
Dossierthe arithmetic of the window
The starting point of the temple. Herod's eighteenth year = 20/19 BC (Josephus, Ant. 15.380). What anchors it is not a counting convention but Josephus' own sequence: Ant. 15.354 puts Augustus' arrival in Syria in the seventeenth year, that visit is fixed on the Roman side at 20 BC (Dio 54.7), and the eighteenth year follows directly. Add forty-six years (there is no year zero) = AD 27/28 → first Passover in the spring of 28.
The rival figure. Josephus gives two. Bellum Judaicum (BJ) 1.401 puts the rebuilding in the fifteenth year. Counted from the appointment (40 BC), the 18th year is 23/22 and the 15th 26/25; counted from the capture of Jerusalem (37 BC), the 18th year is 20/19 and the 15th 23/22. Only the 18th year on the capture meets the Syrian visit. And the fifteenth-year figure serves nobody's reckoning: add 46 and you land in AD 21/22 or AD 24/25 — too early for every candidate, for AD 30 as much as for 31 and 33. Whoever lets it count is left with no John 2:20 arithmetic at all.
What follows. The 46-year route is less sharp than every party treats it — this book included, up to this line. It stays here as the second anchor beside the autumn count, but without the word "fixed": the starting point hangs on Josephus' sequence in Ant. 15.354, not on the one figure this book happened to pick. [DOCUMENTED — Ant. 15.354, 15.380 and BJ 1.401 checked in the primary text; CONSTRUED — the weighing]
The addition towards the crucifixion year. The year depends on two choices — the baptism and the number of Passovers:
The lower bound. Pilate took up office by 26/27 at the latest (Josephus, Ant. 18.32–35); a baptism in the autumn of 27 falls neatly behind that. The book's chronology is thus: baptism autumn 27, first Passover 28, four Passovers, crucifixion AD 31 — verifiable, but dependent on two construed choices, and that is stated honestly beside it. [CALCULATED]
Then the third link, and it is the hinge between AD 30 and AD 31: how many Passovers does the ministry count? John names three of them expressly: at the cleansing of the temple (2:13), at the multiplication of the loaves (6:4), and just before the passion (11:55). The question is whether there is a fourth: the nameless "feast of the Jews" in John 5:1. If that too is a Passover, the ministry counts four Passovers and lasts about three and a half years; if it is not, three remain and it lasts about two and a half. And the year hangs on that: four Passovers from the baptism in 27 brings the crucifixion to AD 31; three brings it to AD 30. This book reads John 5:1 as a Passover — not out of arithmetical convenience, but because the earliest witnesses read it so: Irenaeus, around the year 180, counts the nameless feast as "the second time" that Jesus went up for the Passover (Irenaeus, Adversus Haereses 2.22.3), and Eusebius, around 315, expressly gives the length of the ministry as "three and a half years, and this the evangelist John makes clear" (Eusebius, Demonstratio Evangelica 8.2). The early reception thus reads four Passovers and three and a half years. (In fairness, and it is said every time: Irenaeus drew from his own count a conclusion no one has followed — that Jesus was approaching fifty and ministered for more than ten years, 2.22.5–6. His count is adopted, not his conclusion.) What remains honest has been measured: the nameless feast is and remains nameless, a shorter ministry is not excluded (ch. 14), and the extra spring is support and not compulsion. The dossier below sets out the test that established that, including the two criteria it failed; the registered form, with the criteria in table and the corpus gap that keeps it open, stands in appendix E.3.
Dossierthe extra spring: a test fixed in advance, and it did not compel
The reading that inserts a spring between John 2:13 and John 6:4 carries, on this book's route, the whole difference between AD 30 and AD 31. It was therefore put to a test whose criteria were written down before the sources were read: three that would have to be met for the extra spring, three that would tell against it. No criterion was adjusted along the way. The outcome is possible, not compelled, and it is entered here in that form.
Of the three for, criterion 1 was not met — a constraint that would force the plucking of the grain (Matt. 12:1; Mark 2:23; Luke 6:1) after the Passover of John 2:13 independently of the assumed Judaea–Galilee order. The synoptists themselves disagree on where the incident belongs: Matthew sets it after the Baptist's question from prison, Mark and Luke long before, ahead of the calling of the Twelve. At least one of them is not ordering chronologically here, and Mark 2:1–3:6 is a thematically arranged series of controversies. Criterion 2 was not met either — a seasonal reading of John 4:35 ("yet four months, and the harvest") that would exclude the proverb reading. The seasonal reading turned out stronger than expected, and no such proverb is attested anywhere; but the commentary tradition is divided and does not divide in a way that settles it. Criterion 3 was met — the early reception of John 5:1 — and in its own wording, as support. Of the three against, two were met (the Judaea–Galilee order rests on a harmonisation the synoptists do not claim; the third leg re-uses the material of the first) and one was not: the tradition is not predominantly proverb-reading, and it does contain readers who take the four months as a real interval and build no chronology on it.
And the author on whom the reading leans claims no more than that. Hoehner writes that the plucking of the grain "would fit well" between the two Passovers (1977, p. 56). That is not a compelling argument, and he does not offer it as one. Further: his two supports cannot both be used. He reads John 5:1 "with great hesitation" as Tabernacles rather than as a Passover, calls Blinzler's claim that a three-year ministry requires 5:1 to be a Passover "false", and his Tabernacles argument rests in turn on the seasonal reading of 4:35 — "If 5:1 were the next Passover, it would come immediately after 4:35" (1977, pp. 58–59). Whoever runs the Hoehner package cannot run Irenaeus at the same time, for Irenaeus' whole point is that 5:1 is a Passover. This book therefore carries one route and not both: the early reception, as support, with Irenaeus' own untenable conclusion named beside it — and not Hoehner's ordering as an independent leg.
What that costs, said plainly: the four-Passover reading may not be presented as compelled, and earlier versions of this book presented it more strongly than the test bears. What it does not cost: the reading is not special pleading. It is a respectable reading that merely does not force. And the result runs the same way in both directions — on this axis AD 31 is admissible and not indicated, and AD 30, which needs exactly three Passovers, is equally not indicated. The axis is undecided, and the decision falls elsewhere. [DOCUMENTED — Hoehner, 1977, pp. 56 and 58–59, seen at first hand; the criteria fixed before the reading]
Countercasethe chronology that points away from AD 31
Let the opposing party make its strongest move here, for it has one. The best-attested count of Luke 3:1 — the sole rule from 14, carried by seven ancient witnesses and the full coin evidence — gives a baptism in 28/29, not in 27 (Steinmann, 2022a). And the forty-six years of John 2:20 can, on strict grammar, be read precisely the other way round: take the dative etesin as a point in time ("forty-six years ago") rather than as a duration, and the word naos in its narrow sense of the sanctuary building completed as early as 18 BC, and the saying comes out at ~AD 29/30 and the crucifixion at AD 33 (Steinmann, 2022b). Two anchors, and both can be bent towards AD 33 — the year of the reigning dating. Whoever defends AD 31 must therefore choose the less usual branch at both anchors. That is a real burden, and I shall not talk my way around it.
The answer is not that the opposing party is wrong, but that the situation is more symmetrical than it seems. For a structural compulsion lies beneath it. The natural, majority reading of John 2:20 (duration, first Passover ~27/28) and the best-attested reading of Luke 3:1 (28/29 → baptism 29) are mutually incompatible — the first Passover would then fall before the baptism. Every chronologist must therefore adjust one of them. This book holds fast to the majority John 2:20 and adjusts Luke 3:1 (the autumn count, baptism 27). The defender of AD 33 holds fast to the majority Luke 3:1 and adjusts John 2:20 (the narrow naos, point-in-time). The question is not "who is cheating", but "whose adjustment is the better founded" — and on that point it stands, honestly counted, close to even.
Dossierthe naos of John 2:20, measured against Josephus' own usage
The reversal reading above hangs on one lexical hinge: that "temple" in John 2:20 is the Greek naos, and that naos strictly means the sanctuary building — completed as early as around 18 BC, so that "forty-six years" would point to a moment in the past rather than to a building still in progress. The distinction naos (the sanctuary) versus hieron (the whole complex) is a real tendency in the New Testament. But whether it compels here can be tested against the witness who stands closest to it: Josephus, who describes precisely this temple in Greek. And his own usage does not carry the strict reading.
Josephus does narrow naos in the technical building account — "the naos itself was built by the priests in a year and six months" (Ant. 15.421). But that very sentence undermines the reversal reading: were "forty-six years" the building time of the naos itself, it could not be right, for that sanctuary stood in a year and a half. And elsewhere Josephus uses the word broadly: "they build the naos [...] and have drawn the colonnades and the walls around it" (Ant. 11.87) — a naos with colonnades and walls is the whole temple work, not the cella alone. The lexica point the same way: the foundational dictionary (LSJ) gives as the first sense of naos "the temple" (the building as a whole); the narrow sense "cella" is the derived, second sense, and the New Testament restriction is a contextual particularity, not a property of the word.
This tips "forty-six years" back to the majority reading — the temple the speakers had watched rising before their eyes for forty-six years (and longer: the work continued until about AD 63) — and with it to the first Passover in 27/28 and the crucifixion in 30/31. It makes AD 33 harder, but — and this is the honest limit — it does not exclude it: the grammatical supports of the reversal reading (the dative as a point in time, the aorist as completed) stand apart from the lexis and survive. John 2:20 thus remains what the note on the sources says it is: a reversible anchor, which under the majority reading fits AD 31 and can be bent towards AD 33 by a practised opponent — no hard anchor, but one that, measured against Josephus' own usage, leans slightly towards the pair 30/31. [DOCUMENTED for Josephus' usage — Ant. 15.421 and 11.87 (Greek); CONSTRUED for the weighing]
Reis (2025, p. 3) reckons along the same axis, but from the other end. He places the start of the building at the end of 21 or the spring of 20 BC, has the work finished some 18 months later (18/17 BC), and counts the forty-six years of John 2:20 from that completion: the first Passover then falls in AD 30 — the opening of a ministry that, in his chronology, ends on the cross in 33. That start — "ten years after Actium" — is not Josephus' figure but Reis' own inference: Josephus dates the beginning by a regnal year alone, and against his own anchor (Ant. 15.354) Reis comes out one year early; his result does not change for it. His AD 30 is a first Passover, then, not the crucifixion year that chapter 14 weighs. And those 18 months are Josephus' figure for the naos itself (Ant. 15.421) — the very datum this workbench measures above. His variant therefore adds no new evidence; it is the reversal reading counted in the other direction. This book counts the forty-six years from the start of the work and arrives at 27/28; he counts them from the end of the same year and a half and arrives three years later. Laid beside Steinmann's reckoning, his is not a second witness for the reversal reading but the same one: both rest on the narrow naos, and that narrow sense is, measured against Josephus' own usage, the derived meaning and not the first. [DOCUMENTED for Reis' reckoning — Reis (2025), p. 3; CONSTRUED for the weighing]
See how the two axes relate, for there lies the honesty of the whole. On the chronological axis AD 31 is admissible and, on the readings of this book, natural — but not compelling; AD 30 and AD 33 each remain alive, each at the price of an adjustment of its own. The chronology, then, does not choose. What chooses is the day: the sign of Jonah that asks three nights, the two sabbaths, the fourteenth of Nisan — and of the years the career allows, there is exactly one with a Wednesday 14 Nisan inside that window, and that is AD 31. The ministry window is the sieve; the day is the hand that reaches through the sieve.
And here belongs a distinction that carries the whole book, and I write it out deliberately. The baptism in the year 27 is derived in this chapter from ordinary history — Luke 3:1 and John 2:20 — and from nothing else. That is deliberate, but not in order to keep Daniel outside the door. For there is a second road to that same year 27, and it is strong: the seventy weeks of Daniel, the restoration decree of 458 BC, counted from 457, the four hundred and eighty-three years to the Anointed One — 457 + 483 comes out at the year 27, the anointing, the end of the sixty-nine weeks. And there, at the baptism, the two roads meet: the emperor and the temple (Luke 3:1, John 2:20) and the prophet both point to AD 27. That is a second route arriving at the same year — and I carry it as convergence, not as support: the historical route of this chapter stands fully intact without it, and Appendix F shows what the weighing does when the 457-line is removed (ch. 16). What Daniel says about the end is deliberately wider: "after the sixty-two sevens an anointed one shall be cut off" (Daniel 9:26) — "after", not "in the midst". The prophecy thus pins the beginning and opens a window; it does not compel the crucifixion year, and it need not. What closes that window is not Daniel but the ministry: it lasts at most three and a half years (the four Passovers of John — carried as support and not as compulsion, per the dossier on the extra spring) and at least two, and at the far edge of that the cross falls in the spring of 31. That is a prophetic line, but — and this is the decisive word — a prophetic line that is measurable: it has a documented decree, a verifiable count and an end point that coincides at the baptism with the emperor, the temple and the Passovers. Precisely for that reason I keep the two roads separate here — not to hide the prophecy, but to let its convergence count. Two independent routes arriving at one year weigh more than one, and that remains true only so long as one does not let them lean on each other. Whoever rejects the historicist premise of the seventy weeks keeps the historical route of this chapter fully intact; whoever accepts it gains a second, measurable confirmation. The full working-out of that prophetic line — in this book's own reading, with the seventieth week of Daniel 9:27 still future — comes later; here it counts as what it is: a measurable second witness, with its premise open on the table.
Excursusthe route this book does not take, and the honest two-against-two
Two honesties belong here, and the first costs this book an argument. A popular support for an early baptism is in circulation: coins from Antioch said to count Tiberius' reign from 11/12 already. Those coins do not exist — and that rests not on one old judgement but on the modern coin evidence itself. Eckhel unmasked the types in question (from the Thesaurus Morellianus) as early as 1794, and numismatics has only strengthened that since: the standard corpus Roman Provincial Coinage contains the real Antiochene coins (the Silanus issues, RPC I 4270/4271), which double-date Tiberius' first year to the Actian year 45 = AD 14, hence from the death of Augustus — the opposite of what the phantom types are invoked for. Fotheringham (1934) judged their authenticity indefensible; and a recent inventory of some two hundred dated coin types, supplemented with Egyptian inscriptions and papyri, finds year marks running exclusively from 14/15 to 36/37 — nowhere the years 24–26 that a provincial count from 11/12 would require (Steinmann, 2022a). Those phantom coins, then, this book does not use. But the co-regency itself is a different datum, and it stands: the equal right (aequum ius) of ~12/13 is a documented constitutional fact, publicly dated on the real coins of Lugdunum (RIC I² Tiberius 225–226, "TR POT XV", with Augustus still living), and it makes an early baptism count historically possible. Only: no ancient reckoner demonstrably counts Tiberius' regnal years from that point. A recent numismatic attempt to do just that (Lanser, 2026) leans on precisely these Antiochene coins and on an older thesis about the Actian era (Kubitschek, 1890) — but that thesis concerns the province of Macedonia, not Syria, and its author himself warns that "Macedonian" datings elsewhere refer to derived calendars; the Silanus coins themselves date Tiberius' regnal year 1 to the Actian year 45 = AD 14/15, with the title Sebastos that he bore only after the death of Augustus in the summer of 14. The count from 14 stands, then, even in Luke's own city. This book therefore carries the co-regency as an available, well-grounded but non-load-bearing line — while the AD 27 baptism rests on the autumn count. I say that aloud, for the measure I lay against an opponent — no phantom evidence — holds here against myself.
The second honesty is a piece of bookkeeping. Both camps adjust exactly two awkward texts to their date. The defender of the Friday stretches "three days and three nights" (ch. 3) and narrows the naos of John 2:20. This book reads two texts against the usual branch: the "third day" of Luke 24:21 (ch. 13) and the count of the fifteenth year. It is two against two. That the case stands so is no weakness to hide but the honest starting position: neither side reads all the texts effortlessly, and the weighing turns on which two adjustments the corpus carries better — not on who alone adjusts.
Dossierthe direct count: where Tiberius' regnal years were measured
Behind the sentence "Egyptian inscriptions and papyri, finding year marks running exclusively from 14/15 to 36/37" lies a documentary corpus worth writing out, for it is the count nearest to Luke's own world. In the Egyptian papyrus and ostraca material, collected in Bureth's standard repertory, Tiberius' first year stands at 14/15 — and not from an editorial decision alone: under "year 1 of Tiberius" stand some fifteen dated pieces. Had Egypt applied the ordinary "stub" convention (the accession year as year 1, however short), that year 1 would cover only the ten days between Augustus' death (19 August 14) and the Egyptian new year (1 Thoth, 29 August) — and fifteen documents from ten days, in a province that could not yet have received the news from Rome, is not credible.
That the stub convention was the norm in Egypt — Nero's fourteenth year, the year of his death, is abundantly attested there — makes the exception under Tiberius precisely explicable, and one papyrus supplies the mechanism. P.Oxy. VII 1021 announces the death of Claudius in Oxyrhynchus as news and is already dated "year 1 of Nero" — thirty-five days after the death, and still as news. Applied to Augustus' death, the news reaches Egypt only in late September 14 — after 1 Thoth. There was no stub year to open, for by the time it was known, the new Egyptian year had already begun. No anomaly, but arithmetic.
That same count stands on coin in Judaea itself. The prefects Valerius Gratus and Pontius Pilate struck at Jerusalem on Tiberius' regnal years: Gratus' years 2 to 11 (AD 15–24), Pilate's years 16 to 18 (AD 29–31) — and each of these falls within their terms of office known from Josephus only if Tiberius' year 1 falls in 14/15. Under a count from the co-regency (12/13), Gratus' "year 2" would fall in AD 13, when he was not yet prefect and Tiberius not yet emperor. The direct, primary count thus sets Tiberius' epoch unanimously at 14/15 — what the Excursus established numismatically now also stands documentarily (and, as set out there, does not carry the co-regency as the counter of the AD 27 baptism). [DOCUMENTED — Bureth (1964) 25; P.Oxy. VII 1021 and RPC I 4958–4969, seen at first hand; the conversions CALCULATED]
Dossierthe "twenty-second" of Antiquitates 18.106, and why it does not exist in the Greek
Beneath the epoch of Tiberius — and beneath the dating of Herod's death — runs a second front, and it is textual. Josephus writes that Philip died "in the twentieth year of Tiberius' rule", after "thirty-seven years" of tetrarchy (Ant. 18.106). Philip's own coins bear that 37th year (RPC I 4952–4953, on the era beginning at Herod's death in 4 BC), and so the passage anchors that year of death — the anchor that carries ch. 10. Whoever wants to move Herod to 1 BC therefore needs a different reading, and it exists: part of the Latin tradition reads "the twenty-second year" (Filmer, 1966; Beyer, 1998). Were it to stand, the anchor would fall — and so it too belongs tested here, with the same rigour I lay against an opponent elsewhere.
It does not stand, and Niese's critical apparatus says why. "εἰκοστῷ" — the twentieth — is uniform in all Greek witnesses (the manuscripts A, M, W and the Epitome); the only witness for "twenty-two" is the old Latin translation. More than that: Niese's asterisk before the lemma is his own sign that the Epitome — a Greek branch independent of the main text — reads with the text at this point, and it thus positively confirms "twenty" and "thirty-seven". And the Latin branch that supplies "twenty-two" supplies in the same sentence not "thirty-seven" but "thirty-two" tetrarchy years (other Latin manuscripts: "thirty-five"). No one — not a single witness — reads "22 + 37". And precisely that pair of numbers is what the early dating needs; it is a contamination, the year from the Latin and the regnal figure from the Greek. A witness that demonstrably garbles the second number of the sentence does not carry the first. The "twentieth" stands, and with it the Philip anchor of ch. 10 — even though the epoch of 14/15 that follows from it does not lie to this book's advantage. And the passage costs more than the epoch. Twenty plus thirty-seven from 4 BC gives 33/34, which on an inclusive count would be the twenty-first year: the sentence is a numbered regnal year of a Roman emperor, written by a Jewish narrator, reckoned non-inclusively. It is the sharpest single witness against the autumn-inclusive count on which this book's baptism of 27 depends, and it is weighed as such in the dossier on the reckoning flank below rather than left standing here as an anchor only. [DOCUMENTED — Niese, Opera IV (1890) 160 with apparatus, seen at first hand; Jachowski, 2015]
Dossierthe reckoning flank, registered: unattested, not refuted
This is the heaviest open entry in the book, and it is set down here in the only form it can be carried.
What is measured. Every attested reckoning of Tiberius' regnal years puts year 1 in AD 14/15 — Antioch (RPC I 4270), Seleucia (RPC I 4330), Alexandria (RPC I 5075–5105, the series running to year 23 and stopping there). None puts it in 13/14. *(The literary witnesses — Philo, Josephus, Tacitus, Dio — are of a different kind and are not counted in that list: they give the reign's duration, twenty-two and a half to twenty-three years, and a duration says how long a reign lasted, not how a dating formula numbers its fifteenth year. They fix the epoch at 14, and the Kenner box above cites them for exactly that; they do not fix the numbering. The distinction is entered against my own side elsewhere; it is entered here as well, because it holds in both directions.)* The autumn-inclusive count from which this book takes the baptism of 27 is therefore attested nowhere for Tiberius. Doig, the one author who reaches autumn 27 along it, has an analogy with Herodian practice and no document, and concedes that the Roman coins reckon dynastically. And the one modern defender of an inclusive count from 14, Meier, lands on AD 28 and not on autumn 27 — established here on secondary reports of his position and not on his own pages, and marked as such.
Why the word is nevertheless unattested and not refuted. What the autumn count needs is that Tiberius' accession stub was itself numbered year 1. Neither corpus can test that. Augustus died on 19 August 14; the Egyptian new year (1 Thoth) fell on 29 August and the Actian new year on 2 September, and the news cannot have reached Alexandria or Antioch before either — P.Oxy. VII 1021, in the dossier above, still reported such a death as news thirty-five days later. Both cities therefore begin numbering at the first new year after the news arrived, and that yields year 1 = 14/15 under inclusive and non-inclusive reckoning alike. The coins fix the era; they do not discriminate between the systems. What they do exclude is a stub numbered retroactively, before the news had come; the autumn count does not need that. The only calendars on which the question lived — the Dios autumn, new year 20 October, and a Jewish Tishri year, 1 Tishri on 14 October on the Babylonian months, both after the news had come — have left no document dated by Tiberius at all. So the corpus is structurally unable to answer the question that is asked of it, and absence of evidence cuts both ways here, exactly as this book insists elsewhere that it does. [DOCUMENTED — RPC I 4270, 4330, 5075–5105; P.Oxy. VII 1021; CALCULATED — the news interval and the new-year arithmetic]
What stands on the other side is Jewish, and the fullest survey does not contain it. Steinmann concludes that "there is no evidence for inclusive reckoning of Tiberius's reign" (2022a, p. 115). That conclusion holds for the corpus he searched, and that corpus is Roman, Greek and Egyptian: the Latin historians, Philo, Josephus, Alexandrian and Syrian coins, Latin and Greek inscriptions. The Jewish halakhic material does not appear in it — and that material prescribes precisely the reckoning he finds no trace of, for precisely the same use: the dating of a document. m. Rosh ha-Shanah 1:1 sets the new year for kings on 1 Nisan; the Gemara asks what that serves halakhically, and Rav Ḥisda answers li-shetarot, "for documents". Then the baraita: "a king who acceded on the twenty-ninth of Adar — once the first of Nisan arrives, a year is reckoned to him; and if he acceded only on the first of Nisan, no year is reckoned to him until the next Nisan comes" (b. Rosh ha-Shanah 2a). One day of reign before the new year counts as a whole regnal year. That is non-accession, inclusive reckoning, written out, with its application attached.
Two links stay open, and I name them before an opponent finds them. First, the date of the source: the Mishnah is around 200, and the baraita, though presented as tannaitic, stands in the Bavli; that the rule already held in the first century is plausible and not demonstrated. Second, the application to a foreign ruler: the rule is framed for kings of Israel, and whether Jewish datings of a Roman emperor followed it is a separate question. Neither gap is filled by wanting it filled.
And a third point follows from the rule itself, and it cuts against me. m. Rosh ha-Shanah 1:1 counts from 1 Nisan. Applied to Tiberius, who acceded on 19 August 14, it makes the stub up to Nisan 15 his first year and puts his fifteenth year from Nisan 28 to Nisan 29 — not at the autumn of 27. The rule cited here for the principle of inclusive reckoning does not by itself give this book's date.
On the second link the rabbis speak, and they disagree. The Bavli limits the Nisan rule to Israel's own kings: "lo shanu ella le-malkhei Yisra'el, aval le-malkhei ummot ha-olam mi-Tishri maninan", "Rav Ḥisda said: they taught this only for the kings of Israel; but for the kings of the nations of the world we count from Tishri" (b. Rosh ha-Shanah 3a, derived from Nehemiah 1:1 and 2:1, Kislev and Nisan in the same twentieth year of Artaxerxes). At 8a Rav Pappa reads the Mishnah's "1 Tishri is the new year for years" in the same way, as the rule for documents, and the Gemara reconciles the two: Nisan for the kings of Israel, Tishri for the kings of the nations. On that rule a Roman emperor's fifteenth year runs from Tishri 27, and the news-rule of the coin corpora does not change that: on the Babylonian months 1 Tishri AD 14 fell on 14 October (Parker & Dubberstein), after the news of 19 August can have reached Judea. The Yerushalmi says the opposite: "af le-malkhei ummot ha-olam ein monin ella mi-Nisan", "R. Eleazar in the name of R. Ḥanina: for the kings of the nations of the world, too, one counts only from Nisan" (y. Rosh ha-Shanah 1:1), derived from Haggai 1:15 and Zechariah 1:1, the sixth and the eighth month in the same second year of Darius. Three limits belong with that. Both rules are amoraic, of the third and fourth centuries, and both are derived from the dates of Persian kings in Scripture, not from a practice under Rome. The Bavli must itself keep its rule standing against Haggai and Ezra with ad hoc answers — Cyrus counted like an Israelite king because he was virtuous, Cyrus, Darius and Artaxerxes one man, Nisan before his fall and Tishri after it (3b–4a) — and at 8a two other amoraim read "for years" without documents at all. And the Palestinian voice, the nearer one to Luke's Judea, is the one that says Nisan. Stern's reading of P. Mur. 18 below, Nero counted from Nisan, stands on that side. The Jewish material thus offers both a Tishri 27 and a Nisan 28, it does not choose between them, and a Tishri count for a Roman emperor is available on it, not attested. [DOCUMENTED — m. RH 1:1; b. RH 2a, 3a–4a, 8a; y. RH 1:1 (Sefaria); CALCULATED — the year count]
On that second link there is published expert support — and a published expert against it, in the same breath. Sacha Stern, discussing P. Mur. 18, holds that "the second regnal year of Nero may have begun, according to the Jewish computation, in Nisan of 55 CE", and notes: "Nero became emperor on 13 October 54 CE, but this would not normally have been reckoned as the starting-date of his regnal years (pace Benoit, Milik, and de Vaux 1961: 103) [...] For rabbinic evidence of regnal years beginning in Nisan, see M. RH 1:1, Y. RH 1:1 (56b), B. RH 2a–b" (Calendar and Community, pp. 92–93 with n. 333). Nero acceded on 13 October 54; if his second year began in Nisan 55, his first was the stub from October to Nisan. That is inclusive reckoning of a Roman emperor's years in a Jewish document, held by the standard monograph on the Jewish calendar. Against it stands the editor of that very document: "'An deux de Néron' correspond à 13 octobre 55 – 12 octobre 56" (Benoit, Milik & de Vaux, DJD II, p. 103) — the accession-anniversary count, from the man who had the papyrus in his hands. And Stern writes "may have begun", and adds himself that "the possibility of scribal error must always be taken into account". Support, then, and not establishment. And support for the principle only: Stern's Nisan count gives the fifteenth year from Nisan 28, not from the autumn of 27 (above).
The test that was registered in advance came back undecidable, and that is entered here in full. Before the text was opened I set down what would settle it: Mur 18 should carry a regnal formula, and its month would separate the two readings, since a date in the spring or summer of 55 is year 2 only on Stern's reckoning and still year 1 on Milik's. The formula is there. The month is not. Milik's own translation reads "[Le [...] du mois [...] a]n deux de Néron César" — the square brackets are his restoration, and day and month both lie in the lacuna (DJD II, p. 103, seen at first hand). The document that was to decide cannot decide — not "not yet", but not at all. I record the registered test as undecided, in the same place and the same type in which I would have recorded it had it fallen my way.
And the sharpest thing against my own route is Jewish too, and it stands a paragraph above. Ant. 18.106 dates Philip's death to the twentieth year of Tiberius, after thirty-seven years of tetrarchy from 4 BC — that is 33/34. On an inclusive count 33/34 would be the twenty-first year. Here, then, a Jewish narrator gives a numbered regnal year of a Roman emperor in a synchronism, and he numbers it non-inclusively. It is the nearest thing in this whole dossier to the case Mur 18 was to have supplied, and it runs against me. The halakhic rule shows that the reckoning my chain needs was written down somewhere; Ant. 18.106 shows that the one Jewish writer whose numbering can actually be read did not use it. Both belong on the page, and the second is the reason the flank stays open. The balance, then: the autumn-inclusive count is not probable, but not impossible. [DOCUMENTED — Steinmann, 2022a, p. 115; m. RH 1:1 and b. RH 2a in the Hebrew and Aramaic; Stern, pp. 92–93 with n. 333; DJD II, p. 103; Josephus, Ant. 18.106 with Niese's apparatus]
One word on the author I lean on here, for he excludes my year by name. Steinmann's conclusion is that the evidence "calls into question AD 30 or 31 (or any year before AD 30) as possible years of Jesus's crucifixion", and that "the testimony of the combined evidence from the Gospels for a ministry of about three and a half years supports AD 33 as the correct year of the crucifixion" (2022a, p. 116). I use his measurement and not his outcome, and the reason that is permitted can be checked by anyone with the article open. The two arguments rest on different material and neither derives from the other: the first is a count of coins, papyri and inscriptions; the second is a claim about the length of the ministry, and it enters his own concluding sentence as a premise — "since the Gospels' testimony [...] indicates a ministry for Jesus of over two years" — not as a result of the survey. Whoever accepts the first is not thereby bound to the second. That the second tells against me is registered here and in the dossier on the extra spring, in the main text and not in a footnote.
Where does the investigation stand, then, at the end of the year axis? Astronomy gave the candidates; the ministry said which years it allows; and the answer is that AD 31 is admitted and fits naturally, without the chronology compelling it. The day points to the middle of the week, the year admits AD 31, and the career houses it. Three lines, none of which decides alone, but which come together at one point: one week, in the spring of the year 31. And that week — the seven days of dying and rising — can now, at last, be told.
HeartHEART
Behind the numbers lies a patience. Forty-six years men built at a temple of stone, and they mocked the One who said that He would raise up a greater in three days — the temple of His body. Three and a half years He went about, and the clock ticked, slowly, towards the week for which He had come. Imperial years and Passovers are counted in order to know when; but beneath the when lies a why that no date can hold. He did not hurry. He let the years run their full measure — the baptism, the ministry, the last ascent to Jerusalem — until all was fulfilled. There is comfort in a God who comes on time, and who does not fear time.
Note on the sources
The regnal counts of Tiberius, the starting point of the temple-building and Pilate's accession to office have been tested against the primary sources (Josephus, Dio) and against the numismatic standard work; the AD 27 baptism rests on a construed (autumn-inclusive) manner of counting, and is marked as such. The epoch of Tiberius (year 1 = 14/15) has been tested against the direct documentary count — the Egyptian papyrus and ostraca corpus (Bureth), P.Oxy. VII 1021 for the delay of the news, and the Judaean prefect coins (RPC I); the "22nd year" variant of Antiquitates 18.106, which would move Herod's death to 1 BC, has been refuted on Niese's critical apparatus (uniform "20th" in the Greek, the Epitome confirming "20 + 37"). The Syrian-inclusive "method 3", on which the AD 27 baptism from Luke 3:1 rests, is the weakest of the counts: its footnote chain (Hoehner → Cichorius → Mommsen II.2, 802–804) ends in coin-portrait law, and the only direct Tiberius coin (RPC I 4270) reads 28/29 on its own Actian calendar, and it cannot discriminate between inclusive and non-inclusive reckoning (workbench); on balance the count is not probable, but not impossible — this book therefore carries it as a construed, not a documented count — though autumn 27 as a reading is carried by a standard monograph (Blinzler, Der Prozess Jesu) and the standard handbook (Finegan, Table 163), on the ground of Luke's Antiochene origin — an old tradition this book names but does not carry (see the workbench above): an interpretive support, not an attestation — and lets the AD 27 baptism rest on John 2:20 and on the window of Luke's count, not on the precision of the fifteenth year. That count is registered as unattested and not refuted: no document attests it for Tiberius, and the two coin corpora that might have tested it cannot, because the accession stub had already elapsed at both new years before the news of Augustus' death could arrive. What stands against Steinmann's "no evidence for inclusive reckoning" is Jewish and outside his corpus — m. Rosh ha-Shanah 1:1 with the baraita of b. Rosh ha-Shanah 2a, both consulted in the Hebrew and Aramaic, with two links openly left open (the date of the source, and the application to a foreign ruler); Stern's reading of P. Mur. 18 (pp. 92–93, n. 333) supplies published support for the second link and Milik's own note on DJD II p. 103 the published reading against it. The test on Mur 18 was registered in advance and came back undecidable: day and month lie in the lacuna. Against the whole of it stands Ant. 18.106, a Jewish narrator numbering a Roman emperor's year non-inclusively, and it is entered with the same weight. Josephus' own broad use of naos (Ant. 11.87, 15.421) supports the majority reading of John 2:20 without grammatically excluding AD 33. The forty-six years of John 2:20 is a reversible anchor: consistent with AD 31 under the majority reading, but bendable towards AD 33 by an opponent — it is therefore no hard anchor, and it is not carried as one. The four-Passover reading (and with it the three-and-a-half-year ministry) rests on the early reception (Irenaeus, Eusebius) and remains construed. It was tested on criteria fixed before the reading: two of the three criteria for it were not met, Hoehner claims no more for it than "would fit well" (1977, p. 56), and his Tabernacles reading of John 5:1 excludes the Irenaeus line rather than reinforcing it (pp. 58–59). It is therefore carried as support and not as compulsion, and Irenaeus' own conclusion — a ministry of more than ten years — is named beside his count every time it is used. The test is registered in full in appendix E.3, together with the part of its minimum corpus that has not been reached, and its outcome is entered in the register of assumptions (appendix D.2). The first of Steinmann's two arguments is registered as a finding in favour of this case and the second against it, in appendix E.5. The AD 27 baptism is derived in this chapter from the historical anchors (Luke 3:1, John 2:20), independently of Daniel; the prophetic line of the seventy weeks (457 BC + 483 = 27) converges verifiably on the same year and counts as a measurable second witness — its historicist premise is marked, and the full working-out stands elsewhere. This chapter claims a proof for neither side.
Literature (APA)
Barrett, C. K. (1978). The Gospel according to St John (2nd ed.). Westminster Press. [consulted, not cited in this chapter]
Benoit, P., Milik, J. T., & de Vaux, R. (1961). Les grottes de Murabbaʿât (Discoveries in the Judaean Desert II). Clarendon Press. (P. Mur. 18 at p. 103, seen at first hand: day and month of the date fall in the lacuna; Milik's note reckons "year two of Nero" as 13 October 55 – 12 October 56.)
Beyer, D. W. (1998). Josephus reexamined: Unraveling the twenty-second year of Tiberius. In J. Vardaman (Ed.), Chronos, kairos, Christos II (pp. 85–96). Mercer University Press. (Defends the "22nd year" reading of Ant. 18.106; refuted on Niese's Greek apparatus — see Jachowski.)
Brown, R. E. (1966). The Gospel according to John (I–XII) (Anchor Bible 29). Doubleday. [consulted, not cited in this chapter]
Blinzler, J. (1955). Der Prozess Jesu (2nd, expanded ed.). Friedrich Pustet. (Sets the fifteenth year at Oct 1, 27 – Sept 30, 28 on the Syrian count, "to be presupposed precisely in Luke as a born Syrian"; own crucifixion year AD 30, two-year ministry, but leaves AD 31 open.)
Bureth, P. (1964). Les titulatures impériales dans les papyrus, les ostraca et les inscriptions d'Égypte (30 a.C.–284 p.C.). Fondation Égyptologique Reine Élisabeth.
Cichorius, C. (1923). Chronologisches zum Leben Jesu. Zeitschrift für die neutestamentliche Wissenschaft, 22, 16–20. (Leans, for the autumn count of the fifteenth year, on Mommsen, Röm. Staatsrecht II 803 f. — pages that treat the Bildnissrecht.)
Doig, K. F. (1990). New Testament chronology. Mellen. (Ch. 12: the fifteenth year on the Syro-Macedonian autumn calendar, 20 October 27 – 9 October 28. The calendar boundaries have been recomputed here and come out to the day; the reckoning rests on an analogy with Herodian practice, and Doig concedes that the Roman coins reckon dynastically.)
Eusebius of Caesarea. (1920). The proof of the Gospel (Demonstratio Evangelica) (W. J. Ferrar, Trans.; Book 8, ch. 2). SPCK.
Filmer, W. E. (1966). The chronology of the reign of Herod the Great. Journal of Theological Studies, 17(2), 283–298.
Finegan, J. (1998). Handbook of biblical chronology (rev. ed.). Hendrickson. (Table 163 sets Tiberius' fifteenth year — counted from the death of Augustus, Syro-Macedonian, non-accession — at Oct 1, 27 – Sept 30, 28, identical with Blinzler; §579 raises this provincial reading on the ground of Luke's Antiochene origin, §580 declines it and adopts AD 29, Table 169.)
Fotheringham, J. K. (1934). The evidence of astronomy and technical chronology for the date of the crucifixion. Journal of Theological Studies, 35, 146–162.
Hoehner, H. W. (1977). Chronological aspects of the life of Christ (pp. 29–43, 56, 58–59). Zondervan. ("Would fit well" for the plucking of the grain at p. 56; the Tabernacles reading of John 5:1, "with great hesitation", and the "false" against Blinzler at pp. 58–59. Seen at first hand.)
Irenaeus of Lyons. (1885). Against heresies (Ante-Nicene Fathers, Vol. 1; Book 2, ch. 22, §3). Christian Literature Company.
Jachowski, R. J. (2015). The death of Herod the Great and the Latin Josephus: Re-examining the twenty-second year of Tiberius. Journal of Greco-Roman Christianity and Judaism, 11, 9–18.
Kubitschek, W. (1890). Jahrzählung und Jahranfang im römischen Makedonien. Archäologisch-epigraphische Mittheilungen aus Österreich-Ungarn, 13(1), 120–124. (Concerns the Macedonian era; expressly warns that "Macedonian" datings elsewhere refer to derived calendars.)
Lanser, R. (2021). The Parthian War paradigm and the reign of Herod the Great. Near East Archaeological Society Bulletin, 66, 21–36. (Refutes, with Appian BC 5.65 and Livy Per. 127, Steinmann and Young's claim that Ventidius left only after Misenum. His own reconstruction — Ventidius in Judea in 40, Herod named king in early October 40 — does not stand against Josephus' winter, Ant. 14.376 and War 1.279, nor against Dio 48.41.4–5.)
Lanser, R. (2026, January 13). The first regnal year of Tiberius as indicated on Roman coins [Daniel 9:24–27 Project]. Associates for Biblical Research. (Revives the co-regency count; on the Antiochene Silanus coins themselves, however, Tiberius' year 1 begins in AD 14/15.)
Meier, J. P. (1991). A marginal Jew: Rethinking the historical Jesus (Vol. 1, pp. 384–386). Doubleday. (Reckons Tiberius' years inclusively from the sole rule and arrives at AD 28, not at autumn 27. His position is established here on concurring secondary reports; his own pages have not been seen, and he is therefore not quoted.)
Mommsen, T. (1887). Römisches Staatsrecht (Vol. 2, Pt. 2, 3rd ed.). S. Hirzel. (The pages cited, 802–804, treat the Bildnissrecht — the right to the imperial portrait on the coinage — not the Syrian regnal-year count that Hoehner and Cichorius derive from them.)
Niese, B. (Ed.). (1890). Flavii Iosephi opera: Vol. 4. Antiquitatum Iudaicarum libri XVI–XX. Weidmann. (Critical edition with apparatus; Ant. 18.106 at p. 160.)
Parker, R. A., & Dubberstein, W. H. (1946). Babylonian chronology 626 B.C.–A.D. 45 (Studies in Ancient Oriental Civilization 24). University of Chicago Press. [Used: the month table for AD 14, Tashritu 1 = 14 October; ch. 9, the Tishri count.]
Smallwood, E. M. (1976). The Jews under Roman rule from Pompey to Diocletian (Studies in Judaism in Late Antiquity 20). Brill. [p. 168 n. 82: the fifteenth year "presumably by Jewish reckoning", "from October 27".]
Steinmann, A. E. (2022a). Reckoning Tiberius's reign and Jesus's baptism: First- and second-century evidence concerning Tiberius's fifteenth year (Luke 3:1). Tyndale Bulletin, 73, 91–118. https://doi.org/10.53751/001c.37789 ("No evidence for inclusive reckoning of Tiberius's reign" at p. 115; the conclusion excluding AD 30 and AD 31 by name, and supporting AD 33, at p. 116. Seen at first hand. His corpus is Roman, Greek and Egyptian and contains no Jewish halakhic material.)
Steinmann, A. E. (2022b). The temple built in forty-six years: John 2:20 and the date of Jesus' first Passover. Journal of the Evangelical Theological Society, 65(2), 319–331.
Steinmann, A. E., & Young, R. C. (2020). Consular and sabbatical years in Herod's life. Bibliotheca Sacra, 177(708), 442–461.
Stern, S. (2001). Calendar and community: A history of the Jewish calendar, 2nd century BCE–10th century CE (pp. 92–93, with n. 333). Oxford University Press. (Nero's second regnal year "may have begun, according to the Jewish computation, in Nisan of 55 CE", pace Milik; with m. RH 1:1, y. RH 1:1 (56b) and b. RH 2a–b as the rabbinic evidence. Seen at first hand; y. RH 1:1 consulted on 28 September 2026 (Sefaria, Guggenheimer): R. Eleazar in the name of R. Ḥanina counts the kings of the nations, too, from Nisan.)
Primary texts: Luke 3:1, 23 · John 2:13, 2:20; 4:35; 5:1; 6:4; 11:55 · Matthew 12:1 · Mark 2:23 · Luke 6:1 · Josephus, Antiquitates Judaicae 11.87; 15.354, 15.380, 15.420–421; Bellum Judaicum 1.401; 18.32–35, 18.106 (with Niese's apparatus) · Cassius Dio, Historia Romana 54.7; 58.28.5 · Nehemiah 1:1; 2:1 · Haggai 1:15 · Zechariah 1:1 · Mishnah, Rosh ha-Shanah 1:1 · Babylonian Talmud, Rosh ha-Shanah 2a, 3a–4a, 8a · Jerusalem Talmud, Rosh ha-Shanah 1:1 · P. Mur. 18 (DJD II, p. 103) · P.Oxy. VII 1021 (announcement of Nero's accession) · Roman Provincial Coinage I 4270, 4330, 4952–4953, 4958–4969, 5075–5105. Reference for the Tiberius count: Kraeling, Anglican Theological Review 24 (1942) 345–346 (note 18: "no coins prove it" for Tiberius); Mommsen, Römisches Staatsrecht II.2³ (1887) 802–804. Greek/Latin via the standard editions; my own working translation.