Numbers 8:8-12
Numbers 8:8
Then have them take a bull with its grain offering, fine flour mixed with oil; and you shall take a second bull as a sin offering.
Numbers 8:9
So you shall present the Levites in front of the tent of meeting. You shall also assemble the whole congregation of the sons of Israel,
Numbers 8:10
and present the Levites before the Lord; and the sons of Israel shall lay their hands on the Levites.
Numbers 8:11
Aaron then shall present the Levites before the Lord as a wave offering from the sons of Israel, so that they may qualify to perform the service of the Lord.
Numbers 8:12
Now the Levites shall lay their hands on the heads of the bulls; then you are to offer the one as a sin offering and the other as a burnt offering to the Lord, to make atonement for the Levites.