Meh.
Really this looks like retellings of mythology that was floating around in the area at the time. The epic of Gilgamesh is an excellent example. There's some similarities to Hellenistic mythology as well, which isn't surprising. It seems that genesis is one of the younger books at around 2500-2300 years old. They would be familiar with those myths.
The common practice was to borrow heavily from other mythologies, and genesis is rife with it.
Really this looks like retellings of mythology that was floating around in the area at the time. The epic of Gilgamesh is an excellent example. There's some similarities to Hellenistic mythology as well, which isn't surprising. It seems that genesis is one of the younger books at around 2500-2300 years old. They would be familiar with those myths.
The common practice was to borrow heavily from other mythologies, and genesis is rife with it.