There is a lot of really interesting history surrounding this. At the time of the Jewish exile from Babylon, the Jews, like other groups worshipped the God of their people (Yahweh in this case) who was just one in a pantheon of Sumerian/Akkadian deities. These God's were like a proxy for their people, so when the Jews were defeated, held captive and exiled by worshippers of Marduk, by tradition, Yahweh had been slain by the God Marduk. It was around this time that the Jews did a really radical thing. The Jewish leaders would not accept this outcome, and basically decided that Yahweh had not been slain, and was in fact the one true creator God. They basically rewrote the old stories from the Epic of Gilgamesh, the Enuma Elish, and other Sumerian/Akkadian texts to support this new narrative, which is why so many figures share names (many are recast as demons and angels), and there are so many instances of similarities in some of the stories and myths. Or at least this is the version that most scholars seem to agree upon anyway