The farting preacher is a televangelist named Robert Tilton who became famous online around 2008 after videos circulated of him speaking with fart sound effects dubbed over.

There were tons of these videos, and while they may have had a relatively average lifespan online, they actually date back much earlier to the mid-1980s.

According to Wikipedia, the original Farting Preacher tapes were made by two guys beginning in 1985.

They recorded segments from a TV show Tilton had, Success-N-Life, in which Tilton would yell at people about becoming rich through believing in God (and donating to his ministry), and dubbed over the fart noises for comedic effect.

The correct Farting Preacher 5, in the best quality available. Saved from the now defunct FartingPreacher.com.