Just a stray thought, but if god is supposed to be omniscient and omnipotent, meaning that nothing could terminate his/her/its existence, could he/she/it take his/her/its own life, if he/she/it so chooses? If such an event were to occur, how would you know?
Man - I need more sleep…
-FK
This sounds somewhat similar to the immovable/irresistable conundrum.
(Assuming that God does exist to begin with) If God were to cease to exist, anything might happen up to and including the dissapearance of the universe, or nothing at all might happen, - it really depends on the role that God is taking in the sustenance of reality/space/time, which is something on which we can all have opinions, but facts are hard to come by.
This is somehting that cannot happen, since God in the Christian sense is also OMNIPRESENT. He is outside space and time and through all of it as well. And recall as well, from my point of view you can’t commit suicide either, you can only hurt yourself reall badly and get rid of that body of yours.