So the myth grew over time.
Which is probably what all the stories in Genesis are, myths that grew as time went on until they were compiled after Israel adopted the Phoenician alphabet ~1050BCE to ~300BCE there or about.
This would also apply to Exodus, Leviticus, Numbers, Deuteronomy, Joshua, Judges etc.
There is no better love between 2 people than mutual respect for each other WT Young, 2002
Who gave anyone the authority to call me an authority on anything. WT Young, 1969
Since Evolution is only ~90% correct it should be thrown out and replaced by Creation which has even a lower % of correctness. W T Young, 2008