The Book of Genesis (comics) was brought up Catholic, and thus is familiar with the more common Bible stories, but gave up the Catholic faith when he was 16. He went through a phase when he was 15 where he "[went] to church a lot, receiving communion, saying the Rosary, praying", but when he started to scrutinize it, "it just fell apart so quickly." Crumb says he is spiritual, gnostic, and not an atheist; he is "interested in pursuing and understanding the spiritual nature of things." He believes there is a God, but "I don't believe [the Book of Genesis is] the Word of God.
Wife–sister narratives in the Book of Genesis leave Egypt with all the possessions Abram had acquired in Egypt. narrates the story of Abraham emigrating to the southern region of Gerar, whose king is named Abimelech. Abraham states that Sarah, his wife, is really his sister, leading Abimelech to try to take Sarah as a wife; however, God intervened before Abimelech touched Sarah. Abimelech complains to Abraham, who states that Sarah is his half-sister. Abimelech then restores Sarah to Abraham, and gives him gifts of livestock and servants by way of apology, and also allows Abraham to reside anywhere in Gerar. Abimelech also gives 1000 pieces of silver