Numbers 8:20-22

Living Bible

²⁰ So Moses and Aaron and all the people of Israel dedicated the Levites, carefully following Jehovah’s instructions to Moses. ²¹ The Levites purified themselves and washed their clothes, and Aaron presented them to the Lord in a gesture of offering. He then performed the rite of atonement over them to purify them. ²² After that they went into the Tabernacle as assistants to Aaron and his sons; everything was done just as the Lord had commanded Moses.