Numbers 8:21-23

International Standard Version

²¹ The descendants of Levi therefore purified themselves, washed their clothes, and then Aaron presented them as wave offerings to the Lord. Aaron provided atonement for them to purify them. ²² After this, the descendants of Levi entered into their work of service at the appointed place, in the presence of Aaron and his sons. They did everything that the Lord commanded Moses concerning the descendants of Levi.

Age Restrictions for the Descendants of Levi

²³ Later, the Lord told Moses,