So I begin with the assumption that if God exists then God is part of, or God is, the Universe. One could argue that the existence of a Universe makes the existence of God apparent. I can relate to that reasoning also, first in the way that existence is so extraordinary in opposition to nothing at all, and second in the way the existence of a universe strongly implies the existence of other equally possible universes, and weakly implies the existence of all possible forms of existence, which would include an omniscient God. If being has an origin, it is logically inevitable that existence precedes either in time or order, an absolute nothing. This is why I consider nothing to be the second most powerful word in the universe.
Nothing represents the ultimate boundary opposite the most powerful word everything .
Everything is the upper limit and nothing is the lower limit. It simply is not possible to imagine less than nothing, that is, if we say nothing and mean no existence at all. The mind can try to go there. Follow time backward toward nothingness and leave totally everything else behind you, traveling to the beginning of time and space, all being, all thought. If you lean toward science, you might travel to a place before the birth of spacetime at the Big Bang, to the edge of any false vacuum or every existent condition of the Big Bang or any condition from which it might have arose from.