Yahweh, known also as the God of the Old Testament, or simply God, is a deity worshipped by an ancient order of knighthood which predates the foundation of the knights of Tyrrus, (after the secession of the Free Kingdoms.) They believe in a cruel but just God, to whom they swear allegiance and fealty, in the hopes of achieving eternal life in the God's own realm. This monotheistic religion is more popular in the puritan regions of Kal'sea, such as its capital of Malada, and may have helped influence the idea of the One Above All.

Known practitioners of the faith:

- Sir Charles of Richton

- Pas de Peche