Numbers 25:10-13

10Then the LORD said to Moses, 11“Phinehas son of Eleazar, the son of Aaron the priest, has turned My wrath away from the Israelites; for he was zealous for My sake among them, so that I did not consume the Israelites in My zeal. 12Declare, therefore, that I am granting him My covenant of peace. 13It will be a covenant of permanent priesthood for him and his descendants, because he was zealous for his God and made atonement for the Israelites.”