You only share a small part of the full stories and bigger picture.
And for both where did their gods originate from? Look into the Wandjina creation myths of the Aborigines and compare them with the Sumerian. And the creation myths of many Native Americans, some African tribes such as the Dogon, the Hindu, and many others.
“Myths” being the operative word. Makes for some entertaining reading.
Such is the stuff of belief.
Eventually, the truth will come out.