I can't see the problem here - all the gods are, of course, non-material and inhabit a different dimension from us. After all, if a god has created the whole of the universe he/she/it would be a different scale from us - probably far to big to fit into our universe. The creator would necessarily have to exist outwith the universe and thus, but definition, not be able to do public appearances on earth.
Of course, if one is a believer in one of the many, many gods one may be a little disheartened to think that a being like this creator probably cannot manage to communicate with individual humans but, of course, that's what holy books are for. Everything anyone wants to know - that is except the most important things - are in the holy books and one has only to trust the appropriate holy book to know one is doing what that god wants.
Naturally, as this creator cannot communicate with individuals on earth he has had to leave it to individual writers to work out on their own what a creator would want people to do - assuming that creator has any wishes in this regard - and to set out what they think in documents that appear as holy books. Individuals have differing views on what a god might actually want, which neatly explains why the holy books are so different in contnent and requirements as they amount to what one or several humans think that this creator, if he could tell us, would actually want.
Now, as no one can communicate with that creator, we can have no confirmation that the holy books are what god might want which is where faith comes in. One has to have faith that the writers of these books actually have got the rules right. Its a bit of lottery as getting the rules wrong might mean banishment after death rather than some heavenly party so choosing religion needs a lot of careful thought. Its really juts as well that our ancestors settled on areas of the world for each religion so that we don't have to work so hard to choose - born in the UK, Christian, born in India, Hindu etc.
So faith is required but not in the creator but in the writers of the holy books - that they have got the right ideas i.e. made the right guesses as to the rules the creator wants. This is where faith gets hard as, with the exception Islam and Mormonism where we know who the writers of the holy books are, we have no idea who wrote the holy books so that makes faith that more important.
I suppose I ought to just say that the problem with all this is that if there is no communication from a creator at all and everything is guesswork, how do we know -
- That there is a creator at all?
- That a creator, if it exists, has any knowledge of us or the slightest interest in our behaviour?
It seems to me we might just as well settle for our own moral codes and ignore that guesses other have made.