Old Testament – Genesis, Exodus, Leviticus, book of Numbers and Deuteronomy – reached their present form in the Persian period (538–332 BC), and their authors were the elite of exilic returnees who controlled the Temple at that time. The books of Joshua, Judges, Samuel and Kings follow, forming a history of Israel from the Conquest of Canaan to the Siege of Jerusalem c. 587 BC. There is a broad consensus among scholars that these originated as a single work (the so-called "Deuteronomistic history") during the Babylonian exile of the 6th century BC. The two Books of Chronicles cover much the same material
Book of Leviticus sin and guilt offerings, provide the means to gain forgiveness for sins (Leviticus 4–5) and purification from impurities (Leviticus 11–16) so that God can continue to live in the Tabernacle in the midst of the people. Scholars generally agree that Leviticus developed over a long time and that it reached its present form in the Persian period (538–332 BC). The English name Leviticus comes from the Latin "Leviticus," which is in turn from the Greek Greek Λευιτικόν, "Leuitikon", referring the priestly tribe of the Israelites, “Levi.” The Greek expression is in turn a variant of the rabbinic Hebrew "torat kohanim",