Numbers 8:12-14

New Catholic Bible

¹² The Levites will lay their hands upon the heads of the young bulls. You will offer one as a sin offering and the other as a burnt offering to the Lord to make atonement for the Levites.

¹³ “You shall have the Levites stand before Aaron and his sons to present them as a wave offering to the Lord. ¹⁴ Thus you will separate the Levites from the people of Israel, and the Levites will be mine.