How/Where does matter spontaneously materialize?
There is something logically contradictory about this whole thing.
So let's start with the principle that something cannot come out of nothing. If one claims that this is the evidence for "God", then one then has made a logical contradiction, because you've accepted that there's God, and that God didn't have a "maker" or didn't come out of nothing. In other words, who made "God" and where did God come from? To argue that god didn't come out of anything implies that one HAS accepted something out of nothing. So one is being logically inconsistent - not accepting that something can come out of nothing, while at the some point, switch gears and accept that something can come out of nothing.
This is BEFORE we argue about vacuum fluctuation, etc. in Quantum field theory.