It will be for him and his descendants after him a covenant of an everlasting priesthood, because he was zealous for his God and made atonement for the Israelites.”
In context
11“Phinehas son of Eleazar, son of Aaron the priest, has turned my wrath away from the Israelites, because he was zealous for my sake among them, so that I did not consume the Israelites in my jealousy. 12Therefore say: I am giving him my covenant of peace. 13It will be for him and his descendants after him a covenant of an everlasting priesthood, because he was zealous for his God and made atonement for the Israelites.” 14The name of the Israelite man who was killed, the one killed with the Midianite woman, was Zimri son of Salu, a leader of an ancestral house among the Simeonites. 15And the name of the Midianite woman who was killed was Cozbi daughter of Zur, who was head of a people, of an ancestral house in Midian.