Numbers 8:12-14

New International Version

¹² “Then the Levites are to lay their hands on the heads of the bulls,^(A) using one for a sin offering^(B) to the Lord and the other for a burnt offering,^(C) to make atonement^(D) for the Levites. ¹³ Have the Levites stand in front of Aaron and his sons and then present them as a wave offering^(E) to the Lord. ¹⁴ In this way you are to set the Levites apart from the other Israelites, and the Levites will be mine.^(F)