Presumably, He inhabits a particular location in our universe, or at least a location reachable from our physical universe (if not by us).
So on this view, God is a body like any other (at least as far as physicality goes): circumscribed in space?
That seems to raise all sorts of issues. Presumably God is composed of atoms just as we are. And presumably, if he is a physical object like any other, he is constantly gaining and losing atoms. But doesn't that seem odd? It raises the possibility that you or I might be partly composed of atoms that once formed part of God.
(The Epicureans faced a similar objection, interestingly: their solution was that the gods are somehow capable of holding themselves together and not losing or acquiring atoms.)
Perhaps if God were a diamond then this wouldn't be such an issue. But if God is a
living body, as presumably he is, then the problem is worse, because presumably he is composed of cells as we are, and these are constantly renewing themselves.
If God is physical, it would also seem that he should be destructible. Could he be decomposed into his constituent atoms? Could we drop a nuclear bomb on God and turn his atoms into energy? Even if God turns out to be stronger than any other force in the universe, and therefore not susceptible to such things, this would still be a contingent fact; he would remain at least destructible in theory if not in practice. But that doesn't seem very divine.
Moreover, if God is circumscribed within space, then we may still ask where he is: on another planet? Flying in the interstellar void? That just seems really odd to me. Could we actually fly out in a spaceship and see God passing by, like submariners encountering a whale? Is there any guarantee that there is only one God?
No doubt there are answers to all these questions (whether you can address them all individually, I don't know), but really they all boil down to a basic problem I have with this conception of God, which is that he just doesn't seem very Godlike. It seems to me to describe a sort of alien entity which, while very powerful, is just another creature within the universe. There's nothing inconsistent about such a belief, of course, but it just strikes me as really a form of atheism: it seems to me that you're saying that there
isn't really a God, there's just this other thing that acts a bit like God but isn't really. But perhaps that just reflects my own Anselmian assumptions about what the word "God" means.