Capital G God is a distinction for the Judeo Christian god. It’s used when there’s a conversation about multiple deities or religions to avoid any confusion.
Me: the Olympian gods have done some messed up stuff. Oh crap... I shouldn’t have said that. I’m about to get hit by lightning.
Friend: God wouldn’t do that.
Me: I meant the gods, not Capital G God.
Friend: God wouldn’t do that.
Me: I meant the gods, not Capital G God.
by Queenie’s Girl February 5, 2021