Exodus 29:8-10

American Standard Version

⁸ And thou shalt bring his sons, and put coats upon them. 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.

¹⁰ And thou shalt bring the bullock before the tent of meeting: and Aaron and his sons shall lay their hands upon the head of the bullock.