Richard Dawkins and his book The God Delusion is also parodied.
Parker and Stone were very pleased with the work of the animation staff in regards to the designs of the scenes in the future, particularly praising them for accomplishing so much in the short amount of time that a South Park episode is produced.
It reminded him of the Judean People's Front and the People's Front of Judea from the film Monty Python’s Life of Brian, but felt that too much of the episode was devoted to ridiculing him by depicting him having sex with Ms. He commented, "That isn't satire because it has nothing to do with what I stand for.
At the end of "Go God Go", Cartman is sent to the future; Parker and Stone loved the idea, in-part because it presented the opportunity for easy-to-write material.
To rectify this, large portions of the episodes that more reflected Parker and Stone's personal opinions were removed and replaced with less serious material.
The decision to do an episode with the theme of atheism was finalized when Penn Jillette emailed Parker and Stone expressing his disappointment in finding out that they are not atheists themselves.
I wouldn't have minded so much if only it had been in the service of some serious point, but if there was a serious point in there I couldn't discern it." In a Q&A session at the Free Library of Philadelphia, Dawkins said: "I would have thought they could at least have got an actor that could do a proper British accent.
Now, if only I could be offered a cameo role in The Simpsons, I could show that actor how to do a real British accent." When asked about the episode in a 2012 interview with Playboy magazine, Dawkins, who said it was the only episode of South Park he had seen, thought the fighting among the different atheist sects had "a certain amount of truth in it" and harbored a greater potential for satire.