It's shock all around at that particular information drop. No God around would be a bit weird for the people of their world, but it seems the people of Jim's are totally okay with this? How odd. "If there's no gods at all, who's in charge of the universe? Did it really just... start with a bang?"

God, where they come from, lets everyone believe that because She's doing whatever She pleases, but a place with absolutely no gods? Crowley finds it hard to believe a universe could simply come into existence without any provocation.

Aziraphale gets an eye roll for that behind Crowley's dark glasses. "You know what I meant, angel." Don't call him out on his word choices in front of other people! It makes things awkward. "I'm sure it'll all be good and fresh at a celebration like this."