The Early Christians: Christians, Jews or Both?

Pip: The earliest Christians were Jewish — which raises the obvious follow-up question of when exactly they stopped being Jewish, and whether anyone told them at the time.

Mara: That's the driving question behind Anne-Christine Hoff's work on this site, and today we're covering the ground she's laid out so far: how the New Testament is structured and dated, what the earliest church actually looked like, and what this project is trying to do.

Pip: Let's start with the architecture — how the New Testament is arranged and why that makes dating Paul's letters harder than it sounds.

How Acts Unlocks The Timeline Of Paul's Letters

Mara: The core tension here is that Paul's letters, on their own, are almost impossible to date — they don't tell you where Paul is, when he's writing, or what journey he's on. Acts is what supplies the scaffolding.

Pip: And the post on why Acts matters for dating Paul's letters puts it plainly: "While Paul's letters almost never tell us where Paul is writing, when he is writing, how long he has been there, or what journey he is on, Acts provides a timeline by narrating Paul's movements."

Mara: So the upshot is that Acts functions as a kind of external calendar. It names governors, kings, cities — figures like Gallio, Felix, and Festus — who also appear in Roman and Jewish histories, which lets scholars anchor the narrative to datable events.

Pip: The post on chronological anchors in Acts makes this concrete with a striking example. A French excavation team in 1905 found an inscription at the Temple of Apollo in Delphi — a letter from Emperor Claudius mentioning Gallio — which historians used to pin Gallio's governorship to roughly 51–52 CE.

Mara: And once that date is fixed, a chain of cross-references follows. Acts places Paul in Corinth with Silvanus and Timothy. First Thessalonians opens with those same three names and notes that Timothy has just returned from Thessalonica. Two independent sources, same detail — which is considerably stronger than either one standing alone.

Pip: That convergence is the whole method. Neither Acts nor the letters gives you a precise date by itself — you get the date by triangulating between them.

Mara: Which is also why the New Testament's canonical arrangement creates a real problem. The post on why the New Testament isn't in chronological order explains that the books were arranged by literary type and then by length, not by when they were written.

Pip: Romans comes first because it's the longest, not because it's the earliest. First Thessalonians, probably among Paul's oldest surviving letters, sits near the end of the church letters. Galatians may be one of the earliest and appears fourth. The editorial logic was order, not story.

Mara: The post traces how this happened: Paul's letters originally circulated independently, one congregation at a time. By the late first century, churches began gathering copies into collections — and by then, chronological arrangement would have been nearly impossible. So editors sorted by recipient type and approximate length, and that arrangement became canonical.

Pip: An archive organized like a filing cabinet, not a timeline — which is fine until you need the timeline.

Mara: And that's precisely when Acts becomes indispensable. When the two sources converge, historians can often narrow both the time and the place a letter was written with real confidence.

Pip: That convergence method only works, though, if you know what the earliest communities were actually doing — which takes us to the question of how Jewish those first followers of Jesus really were.

The Jewish Life Of The Earliest Christians

Mara: The post on the earliest Christians remaining Jews makes the case that before 70 CE, the followers of Jesus continued to function as Jews in concrete, observable ways — praying at the Temple, attending synagogues, observing pilgrimage festivals.

Pip: The passage that captures it is from Acts 21, where Jewish Christians in Jerusalem describe their own community as "thousands of believers from among the Jews" who are all "zealous observers of the law."

Mara: What this means in practice is that the boundary between Judaism and this new movement was not yet drawn. Paul undergoes ritual purification at the Temple, pays Nazirite vow-completion offerings, and rushes to Jerusalem specifically to observe Pentecost — all of which the Book of Hebrews, written perhaps a decade later, is still working through theologically.

Pip: The identity question wasn't settled. It was live.

Mara: That unresolved tension — how to practice Judaism now that, according to these communities, the Messiah had died for their sins — is exactly what the larger project is trying to date and trace.

A Question That Grew Into A Project

Mara: The post on what kind of project this is explains that it started with a single question and a planned article of under fifteen hundred words — and then the research kept opening new problems.

Pip: "Questions like the dating of Hebrews quickly revealed that the larger issue cannot be answered without careful attention to chronology."

Mara: So the project became a series — each article focused on one event, document, or historical moment, using the question of when to track the shift from Jewish sect to distinct religious entity. Chronology isn't a side concern here; it's the organizing principle.

Pip: A single question about identity, held in place by dates and inscriptions and letters that weren't meant to be a timeline.

Mara: Next time, more of that chronology — and probably more of what it reveals about where the boundary eventually did get drawn.