Numbers 8:11-13

New King James Version

¹¹ and Aaron shall ^[a]offer the Levites before the Lord like a ^(A)wave offering from the children of Israel, that they may perform the work of the Lord. ^12 (B)Then the Levites shall lay their hands on the heads of the young bulls, and you shall offer one as a sin offering and the other as a burnt offering to the Lord, to make atonement for the Levites.

¹³ “And you shall stand the Levites before Aaron and his sons, and then offer them like a wave offering to the Lord.