The events recorded in Genesis stretch historically from Creation to Joseph's death, a period of at least 2500 years. The first part of the book (ch. 1-11) is not as easy to date precisely as the second part (ch. 12-50). The history of the patriarchs recorded in this second main division of the text covers a period of about 300 years.
The scope of the book progressively and consistently narrows. The selection of content included in Genesis points to the purpose of the divine author: to reveal the history of and basic principles involved in God's relationship with people.7
