My understanding from reading the bible while I was still christian is pretty much, that in the older parts, god was indeed not almighty. He was just the god of a desert tribe. And of course a stronger god than the other gods of the inferior tribes ... slowly evolving to obviously the strongest god up to the point that there was only one god. And there can be only one god if he is almighty. Or, so powerful that the difference does not matter anymore.

Anyway, the logical fallacy of the "almighty" thing was the main thing for me to give up on the concept. I cannot accept a concept, that puts me in hell (or heaven), eternal damnation (or salvation) for being who I was made to be, influenced by an environment also totally controlled by the creator.