Believing in the existence of God and believing God is a being that deserves our worship are 2 different things.

Also depends on which god and which denomination. If there are gods, it's more likely than not that there are more than one. In Christianity, God makes a big deal of "not worshipping other gods before me" so I'm just saying. What's considered a God anyway? Do extraterrestrial intelligent life with better technology than us count?