What Woody said. If your god is real and really did all this stuff, he has my permission to be as arrogant as he wants. But again, your god's feelings are not what I'm talking about. I really don't see why you keep trying to argue that. Literally no one else is.
Arrogance is a feeling of inflated self worth. If an all powerful God did exist, I'm not sure its self worth could be inflated. Its a small point, but under the premise that the Christian God exists, I don't know that i would say He was arrogant.