from:
COUNTING THE CANON By STEVEN L. KELLMEYER
By A.D. 70 Jerusalem and the Temple were razed by the Romans, the Levitical priesthood was destroyed and the Jewish faith was hemorrhaging followers to the rapidly spreading belief that Jewish prophecy had been fulfilled in Jesus. Because this belief spread most rapidly among the Jews of the Diaspora and the Gentiles of the eastern Mediterranean, the language of trade, koine Greek, and the Greek Septuagint was the common denominator between all the communities.
Jewish Christian oral teaching competed successfully against traditional Jewish oral teaching, and it used Jewish Scripture to do it. This sparked two movements within non-Christian Judaism. First, Jewish scholars began debating whether or not the Christians’ “Greek Scripture” was really Scripture. Second, around the year 200 , the rabbis began writing down Jewish religious and civil law and their commentaries on it, creating what would become the Talmud six centuries later. These Jews ultimately refused the deuterocanonical Old Testament books, probably because of theology (for example, 1 and 2 Maccabees teach the resurrection of the dead, while Wisdom chapters 1-5 contains an unsettlingly prophetic description of Christ’s passion and death) and because they were written in Greek, not Hebrew.