Thread generator, when you began the discussion, you mentioned something very interesting. Particles.
Now, I do not think that God is mathematical principle, and if I did accept that to be the case, I would say that God = A = X, with means that at any variable, God is any variable.
I come to this conclusion simply by an example, but you must first accept one condition as true: God, as we know him, is true.
If and only if God does exist (something I nor the argument I am about to propose do not dispute), then he must be everything.
Premise One: If God exists, he must be all powerful, omnipresent and all good, or at the very least, all powerful and omnipresent.
Premise Two: If God is omnipresent, that means he must be in a given room (i.e., my room).
Premise Three: If you divide that room in half, God would still be in that room (and in the other half, too!).
Premise Four: That room could be divided infinitely, and God would still be in that room.
Premise Five: We could go into the subatomic level and still have a room, in which God would be present.
Conclusion: If God is in a room the size of an atom, or a quark, or whatever a quark is divisible by, then it MUST be the case that God IS the atom, or a quark, or whatever a quark is divisible by.
Conclusion 2: God is everything.
Mathematical principle that represents that: A = X.