GURPS Murder Hobos
A Sept is a Church of the Seven that contains statues of each of the Seven Gods. It is distinct from a monastery, convent, or shrine, which are typically dedicated to one of the gods, rather than all, and not open to the lay members of the church.
Septs usually contain a raised, seven sided platform with statues that represent each of the Seven Gods at the corners. Only priests and acolytes of the priest walk upon the platform. Other congregants kneel around the outside of the platform. Poor communities might lack a raised platform, and have less formal rules of behavior in the Sept.