Book of Numbers twelve princes, one of each tribe. The majority of modern biblical scholars believe that the Torah (the books of Genesis, Exodus, Leviticus, Numbers, and Deuteronomy) reached its present form in the post-Exilic period (i.e., after c.520 BCE), based on pre-existing written and oral traditions and "contemporary geographical and demographic details but even more importantly from contemporary political realities". The five books are often described as being drawn from four "sources" - schools of writers rather than individuals - the Yahwist and the Elohist (frequently treated as a single source), the Priestly source and the Deuteronomist. There is ongoing dispute over
Old Testament Elijah (as promised by the prophet Malachi, whose book now ends the Old Testament and precedes Mark's account of John the Baptist). None predicted a Messiah who suffers and dies for the sins of all the people. The story of Jesus' death therefore involved a profound shift in meaning from the tradition of the Old Testament. The name "Old Testament" reflects Christianity's understanding of itself as the fulfillment of Jeremiah's prophecy of a New Covenant (which is similar to "testament" and often conflated) to replace the existing covenant between God and Israel (Jeremiah 31:31). The emphasis, however, has shifted from