Step One: Read Genesis 1:1–2 Step Two: Read Some Context Author: The authorship of the book of Genesis is traditionally attributed to Moses, the prophet and leader of Israel during the exodus from Egypt. Date: Between 1400 and 1250 B.C. (1 Kings 6:1). Audience: The nation of Israel. Purpose: The book of Genesis is about beginnings (origins). Genesis records, among others, the origin of creation, the nation of Israel, marriage between one man and one woman, and human evil (sin).