Spoiler-Alert!
This post contains spoilers for the first season of Good Omens.
One cannot really let a story begin earlier than at the beginning. It is therefore fair to say that the connection between Aziraphale and Crowley has lasted longer than anything known to us. Especially when there was supposed to be no "connection" between the two of them at all! They should be arch-enemies, for after all Crowley is a demon and Erziraphael an angel. But an actual biblical matter brought them together, a matter that has to do with nothing less than a very specific apple and a flaming sword.