Numbers 25:11-13

11“Phinehas son of Eleazar, son of Aaron the priest, has turned back my wrath from the Israelites because he was zealous among them with my zeal, so that I did not destroy the Israelites in my zeal.

12Therefore declare: I grant him my covenant of peace.

13It will be a covenant of perpetual priesthood for him and his future descendants, because he was zealous for his God and made atonement for the Israelites.”