Genesis is the first book of the Pentateuch( Genesis,Exodus,Leviticus,Numbers, Deuteronomy), the first section of the Jewish and the Christian Scriptures.Its title in English," Genesis", comes from the Greek of Gn 2:4, Literally,"the book of the generations (Genesis) of the heaven and Earth.Its title in the jewsihy Scriptures is the opening Hebrew word,Bereshit, “in the beginning”.
The book has two major sections,the creation and expansion of the human race(2:4-11-9), and the story of Abraham and his descendants (11:10-50:26).The first section deals with God and the nations,and the second deals with God and a particular nation, Israel.