question: "'Tis the Fifteenth Season" is the seventh episode of "The Simpsons"' fifteenth season, and the seventh Christmas-themed episode overall, this episode is notable as being the first to make reference to Lisa's Buddhism since she converted in which earlier Christmas episode, which is the sixth episode, of "The Simpsons"' thirteenth season?
answer: She of Little Faith
context: Title: She of Little Faith
  Passage: "She of Little Faith" is the sixth episode of "The Simpsons"' thirteenth season.  It first aired in the United States on the Fox network on December 16, 2001.  In the episode, Bart Simpson and his father Homer accidentally launch a model rocket into the Springfield church, causing the church council to accept funding plans from Mr. Burns for reparation.
  Title: 'Tis the Fifteenth Season
  Passage: "'Tis the Fifteenth Season" is the seventh episode of "The Simpsons"<nowiki>'</nowiki> fifteenth season, and the seventh Christmas-themed episode overall.  It first aired on the Fox network in the United States on December 14, 2003.  This episode is notable as being the first to make reference to Lisa's Buddhism since she converted in an earlier Christmas episode, "She of Little Faith".
  Title: High School English
  Passage: "High School English" is the seventh episode of the fifteenth season of the animated sitcom "Family Guy", and the 276th episode overall.  It aired on Fox in the United States on November 20, 2016, and is written by Ted Jessup and directed by Steve Robertson.
citations: 'Tis the Fifteenth Season She of Little Faith