Who wrote Genesis?

Question from Missy:

Question for you. Who do you believe wrote the book of Genesis? I always thought it was Moses but am doubting myself now.

Answer from Pastor Bob:

I believe Moses wrote it, using collections of genealogies and preserved stories (notice the phrase "these are the records" in Genesis 2:4; 5:1), under the inspiration of God. Although the Book of Genesis does not identify its author, it has a unity with Exodus- Deuteronomy, books which were written by Moses for the most part (Exodus 24:4; Numbers 33:2). Social and religious practices in Genesis reflect a time prior to Moses, which indicates he had authentic preserved stories that were not changed, even though things like Abraham's marriage to his half sister would have been offensive later (Genesis 20:12; Leviticus 18:9).