Êxodo 29:9

9 and fasten caps on them. Then tie sashes on Aaron and his sons. Hebrew; Septuagint [on them] The priesthood is theirs by a lasting ordinance. "Then you shall ordain Aaron and his sons.

9 And thou shalt gird them with girdles, Aaron and his sons, and bind head-tires on them: and they shall have the priesthood by a perpetual statute: and thou shalt consecrate Aaron and his sons.