Sirach 45:23-25

New Revised Standard Version Catholic Edition

²³ Phinehas son of Eleazar ranks third in glory
    for being zealous in the fear of the Lord,
and standing firm, when the people turned away,
    in the noble courage of his soul;
    and he made atonement for Israel.
²⁴ Therefore a covenant of friendship was established with him,
    that he should be leader of the sanctuary and of his people,
that he and his descendants should have
    the dignity of the priesthood forever.
²⁵ Just as a covenant was established with David
    son of Jesse of the tribe of Judah,
that the king’s heritage passes only from son to son,
    so the heritage of Aaron is for his descendants alone.