Triumvism is a major religion, which follows the teachings of the Saintly Triumviate: Eospeth, the son; Leah, the daughter; and Mat, the prophet. Each of these figures has their own "testament" written about their journeys.
The Saintly Triumvirate
Esopeth, Son of God, walked among man, living through the suffering of himself and others.
Leah, Daughter of God, was the smart one.
Mat, the Prophet, ___.
The Templars are sworn to serve this faith, by rooting out criminal blasphemies (such as demonic sacrifice), defending the church and congregation, and searching for lost knowledge or artifacts of the church.