Exodus 29:7-9

New Century Version

⁷ Take the special olive oil and pour it on his head to make him a priest.

⁸ “Then bring his sons and put the inner robes on them. ⁹ Put the headbands on their heads, and tie cloth belts around their waists. Aaron and his descendants will be priests in Israel, according to a rule that will continue from now on. This is how you will appoint Aaron and his sons as priests.