Numbers 8:21-23

New King James Version

^21 (A)And the Levites purified themselves and washed their clothes; then Aaron presented them like a wave offering before the Lord, and Aaron made atonement for them to cleanse them. ^22 (B)After that the Levites went in to do their work in the tabernacle of meeting before Aaron and his sons; ^(C)as the Lord commanded Moses concerning the Levites, so they did to them.

²³ Then the Lord spoke to Moses, saying,