Deuteronomy No one other than Moses has been suggested as the author of Deuteronomy, though perhaps Joshua wrote the final chapter describing Moses’ death. Moses wrote the book around 1410 B.C.; the language and expressions as well as the historical facts it describes prove the book’s antiquity. In Hebrew the book is called Haddebharim, “These Words,” from the Hebrew manuscript’s first two words. Deuteronomy comes from the LXX, meaning “The Second Legislation”; Exodus is sometimes referred to as “The First Legislation.”