Selman, the idea for the episode came about when he and former staff writer Dan Greaney were pitching episode ideas for the tenth season with former staff writer Donick Cary. Cary and Greaney suggested a "Bible-trilogy" story, which then became "Simpsons Bible Stories". "Simpsons Bible Stories" is the first of the trilogy episodes which, since the season 12 episode "Simpsons Tall Tales", The Simpsons produces once every season. The first segment was written by Long. According to former staff writer Tom Martin, Long wanted the pig in the garden of Eden to have a "Tony British" accent. The pig was voiced by regular cast member Hank Azaria, who portrays Moe Szyslak among other characters in the series. The unicorn that digs a hole from the garden of Eden was portrayed by Tress MacNeille. The second segment was written by Doyle. The episode's third segment was written by Selman. When writing segments for trilogy episodes, the writing staff usually follow the stories they are based on, while putting The Simpsons characters in the original characters' place. With "Simpsons Bible Stories"' third segment, Selman stated that he wanted to go a "fresh new way" by instead writing a sequel to the story of David and Goliath. According to Scully, Selman had a very clear vision of how he wanted the segment to be, and Selman said that he wanted to make a "dog's breakfast" of movie clichés at the time. The song that plays during Bart's training montage is "Winner Takes It All" by American rock singer Sammy Hagar. Selman decided to include the song after hearing it in the 1987 action drama film Over the Top. According to Doyle, the scene was originally much longer, almost seven minutes in length. The song that plays during the episode's end credits is "Highway to Hell" by Australian hard rock band AC/DC. According to Scully, the staff could not use the song on The Simpsons at first, since AC/DC's record company refused to sell it. However, when Scully called the band's manager directly, it turned out he had not been told about the request. Scully said that when they asked if they could use "Highway to Hell", the band's manager "signed on right away" and gave the Simpsons staff a "huge discount." Because most of the episode takes place in ancient history, the animators had to create completely new sets and designs for the