“It turns out that other ancient nations had their own stories of beginnings, and they were similar to the stories in Genesis— creation, the first humans, and a great flood that drowned everyone. These other stories were not only similar but also much older than the versions we find in the Bible. So, logically speaking, if the biblical versions of these stories are similar and younger, the biblical writers likely weren’t working from scratch. They had a formula for writing their stories.
The idea that the stories in Genesis were later versions of older ones made a lot of Christians uncomfortable. The Bible didn’t look unique any longer, a book with classified information from God delivered only to the ancient Israelites. It looked more like another story told by a tribal people from three thousand or so years with a talking serpent and two trees with “magical” properties to give life and knowledge. These stories were myths—stories with religious value written by and for ancient people with no (or precious little) historical, let alone scientific, value for us today.”
-The Sin of Certainty