Exodus 29:8-10

New Catholic Bible

⁸ “As for his sons, make them draw near and clothe them in their tunics, ⁹ wrap their sashes around them, and tie their caps on them. They will participate in the priesthood by an eternal statute. This is how you shall consecrate Aaron and his sons.

¹⁰ The Offering of the Sacrifices.“Then have the young bull brought in front of the meeting tent. Aaron and his sons shall lay their hands on its head.