The sumerian and the Egyptian texts are very much corrupted and misunderstood. These texts should be solved by advanced souls and not some random Jew.
Water is the "element of the soul". Flooding the World likely means giving soul to it, purifying and perfecting it (elemental water is purifying also).
Satan and some other God often represented as multiple Gods even in one mythology. Enlil is Zeus, Baalzebul, not an enemy. Enki is Satan, Pan, Dionysus, Poseidon,.. This is because Gods in mythology only represents one aspect of life where in real life they represents a lot of things.
Enlil and Enki, in most mythologies, and in real life also very close to each other in every way. Some mythology puts Baalzebul as the "main God" and some puts Satan.
This is only my though but maybe Baalzebul rules more over Humanity, and Satan rules over everything. But not sure. I'm sure however that Satan is the ultimate God, "He is all the Gods".