Numbers 8:11-15

11Aaron will present the Levites to the Lord as an offering from the Israelites. Then they will be ready to do the Lord’s work.

12“The Levites will place their hands on the heads of the young bulls. Sacrifice one of them as an offering for sin and the other one as a burnt offering to the Lord. These sacrifices will make peace with the Lord for the Levites.

13Make the Levites stand in front of Aaron and his sons, and present them as an offering to the Lord.

14In this way you will separate the Levites from the other Israelites, and the Levites will be mine.

15“Once you have made them clean and presented them as an offering, the Levites may come and do their work at the tent of meeting.