God is a word of mans and therefore the concept is also mans, it is an attempt to propose a carrot stick system for life in which doing the "right" thing is rewarded and digresions are punished.
God is also an answer for the questions we cannot answer , convenient since most "gods" have powers beyond human understanding,
This means that there is always an opt out for "I have no fuckin' idea" , instead you can just say "thats a miracle", "the work of god" lol

I don't believe BTW