Numbers 8:10-12

New International Version - UK

¹⁰ You are to bring the Levites before the Lord, and the Israelites are to lay their hands on them. ¹¹ Aaron is to present the Levites before the Lord as a wave offering from the Israelites, so that they may be ready to do the work of the Lord.

¹² ‘Then the Levites are to lay their hands on the heads of the bulls, using one for a sin offering to the Lord and the other for a burnt offering, to make atonement for the Levites.