The Book of Jubilees — also known as The Little Genesis — purports to be a divine revelation delivered by an angel from God to Moses during the prophet's sojourn on Mount Sinai. Chiefly based upon the historical narratives in Genesis and Exodus, the book probably originated as a Jewish apocalyptical work. It also contains a fascinating variety of material not found in the Bible, including details concerning the Fall, Cain and Abel, angels, the Flood, the Tower of Babel, Jacob's visions, the Messianic Kingdom, and many other subjects.