Aziraphale: God's not actually going to wipe out all the locals. I mean, Noah, up there, his family, and his sons, their wives, they're all going to be fine.
Crowley: But they're drowning everybody else? Not the kids? You can't kill kids.
Crowley: Well, that's more the kind of thing you'd expect my lot to do.
Aziraphale: Yes, but when it's done, the Almighty's going to put up a new thing, called a "rain bow", as a promise not to drown everyone again.
Crowley: How kind.
Aziraphale: You can't judge the Almighty, Crawley. God's plans are...
Crowley: Are you going to say "ineffable"?
Crowley: Fruit tree in the middle of a garden with a "Don't Touch" sign. I mean, why not put it on the top of a high mountain? Or on the moon? Makes you wonder what God's really planning.
Aziraphale: Best not to speculate. It's all part of the Great Plan. It's not for us to understand. It's ineffable.
Crowley: The Great Plan's ineffable?
Aziraphale: Exactly. It is beyond understanding and incapable of being put into words.