They were having fun with Biblical allusions. The Savior is going to Hell seemingly to rescue everyone (by the end of the episode)…it says Revelation, literally the book in the New Testament that deals with such end of days matters.
They were trying to be clever b/c the Vancity theme park this is modeled on/they shot at has a ride called Revelation and they didn’t want to pass up the tongue in cheek thing.
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"He was a lot of things to me" "The only conclusion was love"