Dates: c. 132 BC (the Greek Old Testament as a maturing collection — the date the grandson and
translator of Ben Sira gives in his prologue for his arrival in Egypt, the earliest external marker for a Greek
"Law, Prophets, and the rest of the books") · Wikipedia
Verdict on the deuterocanon: YES (inclusion). The Greek Old Testament the early church inherited
contained Tobit — and with it Judith, Wisdom, Sirach, Baruch, and 1–2 Maccabees. It was the most-used
Old Testament in the first Christian centuries, and the New Testament's own scriptural citations overwhelmingly
follow it. So the disputed books were inside the church's working Bible from the start; the later YES / NO verdicts on
this timeline are arguments over a collection the church already had in hand.
The books later contested — Tobit, Judith, Wisdom, Sirach (Ecclesiasticus), Baruch, and 1–2 Maccabees — stood within the Greek Old Testament, not appended to it. The three great Christian pandect Bibles of the fourth and fifth centuries — Codex Vaticanus, Codex Sinaiticus, and Codex Alexandrinus, the oldest near-complete copies of the Septuagint — all carry Tobit among the Old Testament books, interleaved with the protocanonical ones rather than set off as a separate class.1 (Vaticanus and Alexandrinus preserve one textual form of Tobit; Sinaiticus a distinct, longer recension — a sign the book had a long Greek transmission behind it.) Whatever a given Father or council would later say about Tobit's rank, the physical Greek Bibles the church copied and read placed it among the Scriptures.
"By the first century, the LXX was the Bible of Greek-speaking Jews and so was the most frequently used version of the Old Testament in the early Church."
— Catholic Answers, "In Which Passages Does Jesus Quote the Septuagint…?"2 The same point is made from the Jewish side: the Septuagint, made for the Greek-speaking synagogue, passed into Christian hands and "became part of the Bible of the Christian Church."3 Because the church's working Old Testament was this Greek Bible, the books it carried — Tobit among them — were the Scriptures the first Christians actually read in worship, centuries before any council ruled on a fixed list.
"Protestant authors Archer and Chirichigno list 340 places where the New Testament cites the Septuagint but only 33 places where it cites from the Masoretic Text rather than the Septuagint."
— Catholic Answers, summarizing G. L. Archer & G. C. Chirichigno, Old Testament Quotations in the New Testament: A Complete Survey (Chicago: Moody, 1983), pp. 25–32.4 The figure counts the places where the New Testament's wording agrees with the Greek against the (later-named) Masoretic Hebrew: of the roughly 340 Old Testament quotations surveyed, about 307 follow the Septuagint and only 33 the proto-Masoretic text. That textual dependence is why the Greek Bible — deuterocanon and all — became the church's de facto Old Testament: the apostles themselves quote it.
"Codex Vaticanus," Wikipedia (its Old Testament order places Judith and Tobit among the books, after Esther) and Codex Sinaiticus, "Content" (the surviving deuterocanonical books include Tobit, Judith, 1 & 4 Maccabees, Wisdom, and Sirach); Tobit also stands in Codex Alexandrinus. Vaticanus and Alexandrinus share one Greek form of Tobit, Sinaiticus a distinct longer recension. ↩
"In Which Passages Does Jesus Quote the Septuagint, and Where Does the New Testament Allude to the Septuagint?" Catholic Answers Q&A (the LXX as the most-used Old Testament in the early Church). ↩
"Bible Translations — The Septuagint," Jewish Encyclopedia ("It became part of the Bible of the Christian Church"). ↩
Gleason L. Archer & Gregory Chirichigno, Old Testament Quotations in the New Testament: A Complete Survey (Chicago: Moody, 1983), pp. 25–32, as cited and quoted in Catholic Answers (340 New Testament citations agreeing with the Septuagint against 33 with the Masoretic Text; of c. 340 quotations surveyed, c. 307 follow the LXX). ↩