Born Again on the Fourth of July - S13-E14
Revealing mistake: When Bill throws a flare into the shed, the owner of the shed warns everyone about it containing all his fireworks. For 2 seconds the man's arm is coming out of his chest. (00:20:30)
Born Again on the Fourth of July - S13-E14
Factual error: When Bobby and Lucky first walk into the church service that is taking place inside the karate studio, the pastor is calling everyone a sinner, and proceeds to point to a picture of Bruce Lee behind him and says he was a big sinner who repented and knew that the unrighteous would not inherit the kingdom of Heaven. Bruce Lee was an atheist.
Answer: If you are talking about the "Thou shalt not do this, thou shalt not do that" song, I'm not sure if a song like that actually exists. Green Day, the guest voices on the episode, might have just been improvising to keep their appearance from being too obvious.