7 Thus you shall do to them to cleanse them: Sprinkle water of purification on them, and let them shave all their body, and let them wash their clothes, and so make themselves clean.
8 Then let them take a young bull with its grain offering of fine flour mixed with oil, and you shall take another young bull as a sin offering.
9 And you shall bring the Levites before the tabernacle of meeting, and you shall gather together the whole congregation of the children of Israel.
10 So you shall bring the Levites before the Lord, and the children of Israel shall lay their hands on the Levites;
11 and Aaron shall offer the Levites before the Lord like a wave offering from the children of Israel, that they may perform the work of the Lord.
12 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.