The distinction between the Old Testament and the New Testament raises the question of whether the separation of the first century Christian groups and the nascent first century CE Rabbinic Jewish groups was just a continuation of an earlier dispute.  Did the fall of the Temple in 70 CE put the final nail in the coffin?  Was this the fracture of Judaism, as the two groups went in different ways?  Already in the second century BCE, there were differences between the Judean Maccabeus group and the Greek Hellenistic Jews.  None of the inspired Jewish biblical writers who called themselves followers of Jesus Christ in the first century wrote in Hebrew, but all wrote in Greek.  Was Christianity, or the forming of the Christian communities, the final stage of this dispute within Judaism about the role of Greek?