The episode title may be a reference to the song Rapper's Delight by The Sugarhill Gang. Rapper's Delight was in turn a direct inspiration for the Blondie song Rapture, considered the first "hit" rap song. 
The Antichrist's costume is styled after the Riddler from Batman.
The music and setting of the world after The Tribulations are reminiscent of John Carpenter films, notably the Escape From New York / Escape From LA films.
In the final battle, Jesus is seen wearing two "Holy hand-grenade"s which is a reference to Monty Python and the Holy Grail.
The final scene of Klaus wearing the Santa hat is reminiscent of the final scene of several film versions of Charles Dicken's A Christmas Carol, notably the 1970 version of Scrooge when Scrooge places the Santa hat on the door knocker.
When Jesus enters the bar to recruit Stan, Lord Humungous and many of the other raiders from The Road Warrior can be seen in the background.
One of the people in the bar wears clothing reminiscent of Dengar's from Star Wars: The Empire Strikes Back.
Jesus’ comment regarding his father’s dead jester is a reference to Yorick in Hamlet.
During the fight with the anti-Christ when Stan shoots the wisemen down from the ceiling, he says, "It's raining wisemen, hallelujah." This is a reference to the Weather Girls song "It's Raining Men".