This question in my opinion will never have a definitive answer. Thinkers throughout the ages, from Aristotle to Nietszche, from Erasmus to Bertrand Russell have tried to encapsulate ideas and theories into a complete package which can then be labelled as proof of God (or more accurately My Idea of The Potential God) or not!
Ontology, Biology, Philosophy,Phenomenology,Theology.....there's plenty of debating material in these brain baffling subjects.
It seems to me that God is not in a formula or even in a faith. God is in a system of ritual and hierarchy. The concept of God is probably always going to be with us in some shape or form as humans need this immaterial, invisible, nowhere and everywhere type of Being.
The concept could come from mankind's ever curious mind. Where did we come from a human asked one day? Answers
Aliens dropped us off on planet earth many zillions of years ago.
We evolved out of an organic soup which was struck by lightning.
God made us.
God? Who or what is God?
Nice little question. The latest science seems to point to a particle as being God. All I hope for is a world that can believe in God, form a religion around the concept, and not want to kill everyone else who wants to believe in and ritualise an alternative God.
Ideally I would want the answer to be: God is neither a who or a what God is just God.