For me, “God” is an avatar — a metaphor — for the Divine. Same as Allah is a metaphor, and Vishnu, and Ra, and Apollo, and any other deity. We use these avatars because we simply don’t have the language to talk about the Divine in any other way. These metaphors aren’t perfect, but they serve our purposes. “God” is bigger than the Bible, bigger than the Koran, bigger than any religious system or theological construct can manage. For me, the Divine is — for lack of a better way of putting it — existence itself, life itself, purpose, presence, love, causation. Divinity is the “Perfect, Great Unknowable.”
One of the phrases I use in ceremony is to address God as “You who are known by a thousand names and yet are the unnameable One.”