Yeah, it is. Sorry. I'm saying this because your belief in the existence of God is like my belief that harming people is evil. It is a first axiom, and therefore arbitrary. That doesn't mean it cannot have internal logic or cannot be a functional premise. But it is an arbitrary premise. It is reasonable and functional, but not logical. It is faith. Nope, first axioms: they are arbitrary. That doesn't mean they cannot give rise to a framework that has internal logic, or that they cannot be functional, or make no sense. But you are starting out by taking the first axiom on faith.