Well I agree with what people are saying here. The question is quite contradictory... Religion is actually based on faith.
No matter the evidence we get, we need to have faith to believe in such a concept as God. So, I say we first need faith to believe that God exists. Then comes religion where people with same opinions about God gather...
Amidst the ruins of the ancient city I stand now baffled by the blazing battle fought in front of my bare eyes... oh man how much anime did I watch last night!