Since “God” is an arbitrary assertion, to say that one believes in God is to say no more than that one believes in arbitrary assertion.
Now, one sees that believers often engage in argument for their belief. Why? A belief, by its very nature, precludes logical argument; it can only end with, “I feel it.” An honest believer would say, “I deny my reason; I deny logic; I deny reality—at least in this issue.” So, it seems that he can only have the urge to argue because, on some level, he senses his betrayal of his deepest self, and now, by arguing, tries to prove (especially to himself) that he is rational. He has never allowed himself the full acceptance of his own independent, mental functioning, has never allowed himself to be his own highest value.