English
A creed in the context of Salt and Sanctuary is a group of people who share beliefs and side with each other. It determines the appearance of Sanctuaries and gives the player different abilities, like stronger blunt weapons but weaker magic and vice versa, depending on said creed.
The player's creed is the only part of their character that is not chosen before starting the game; Jaret instead asks them upon washing up at the Shivering Shore. A chosen creed is not permanent however; they can be changed by "[t]ak[ing] the oath" at a Sanctuary of the creed they wish to become part of. However, this also causes them to become an apostate and "sinner", forcing the player to repent using salt in order to go back to a previous creed.