Also, Smith also wanted to the original ending to follow through with the Biblical prophecies. In the original ending, everyone dies and while they're dying, the ground shakes and splits open. Keenan manages to survive his injury just long enough to see a giant Angel with a sword fly away, followed by the Four Horsemen of the Apocalypse descending from the clouds.
Another variant of the unused ending featured everyone except for Keenan suriviung his injury and seeing the giant angel with the sword over the body of one of the ATF who sees him and wordlessly shushes him, ending the film. The angel is Loki from Dogma.