Numbers 25:11-13

Thomson(i) 11 Phineas, son of Eleazar, son of Aaron the priest, hath stayed my wrath from Israel, by shewing a zeal for me among them, so that in my jealousy I have not utterly consumed the children of Israel. 12 Therefore say, Behold I give him the covenant of peace. 13 It shall be to him, and to his seed after him, an everlasting covenant of the priests' office, because he shewed a zeal for his God, and made atonement for the children of Israel.