5 And the Lord spoke unto Moses, saying,
6 Take the Levites from among the sons of Israel, and cleanse them.
7 And thus shalt thou do unto them, to cleanse them: Sprinkle water of atonement for sin upon them, and let them shave all their flesh, and let them wash their clothes, and be clean.
8 Then let them take a young bullock with his present, even fine flour mingled with oil, and another young bullock shalt thou offer as sin.
9 And thou shalt offer the Levites before the tabernacle of the testimony, and thou shalt gather the whole congregation of the sons of Israel together;
10 and thou shalt bring the Levites before the Lord, and the sons of Israel shall put their hands upon the Levites;
11 and Aaron shall offer the Levites before the Lord for a wave offering of the sons of Israel, and they shall serve in the ministry of the Lord.