Tyolus
From The Stargate Omnipedia
Mythical figure referenced in the sacred Book of Origin, the foundation of belief for followers of Origin and the Ori. The specific passage reads: "Then to Tyolus: Say to the people of the low plains, seek not the wickedness amongst your neighbors lest it find purchase in your own house."
Enemies of the Ori may use this passage to dissuade an incoming assault by followers of Origin, but uttering their own words is unlikely to sway them.
KEY EPISODE
Camelot - Before the Ori warships open fire on the Milky Way ships Daniel Jackson attempts to sway them from their attack by referencing Tyolus.