Exodus 29:7-10 New International Version (NIV)

7. Take the anointing oil and anoint him by pouring it on his head.

8. Bring his sons and dress them in tunics

9. and fasten caps on them. Then tie sashes on Aaron and his sons. The priesthood is theirs by a lasting ordinance. “Then you shall ordain Aaron and his sons.

10. “Bring the bull to the front of the tent of meeting, and Aaron and his sons shall lay their hands on its head.

Exodus 29