Numbers 8:6-15

8:6 “Take the Levites from among the Israelites and purify them. 8:7 And do this to them to purify them: Sprinkle water of purification on them; then have them shave all their body and wash their clothes, and so purify themselves. 8:8 Then they are to take a young bull with its grain offering of fine flour mixed with olive oil; and you are to take a second young bull for a purification offering. 8:9 You are to bring the Levites before the tent of meeting and assemble the entire community of the Israelites. 8:10 Then you are to bring the Levites before the Lord, and the Israelites are to lay their hands on the Levites; 8:11 and Aaron is to offer the Levites before the Lord as a wave offering from the Israelites, that they may do the work of the Lord. 8:12 When the Levites lay their hands on the heads of the bulls, offer the one for a purification offering and the other for a whole burnt offering to the Lord, to make atonement for the Levites. 8:13 You are to have the Levites stand before Aaron and his sons, and then offer them as a wave offering to the Lord. 8:14 And so you are to separate the Levites from among the Israelites, and the Levites will be mine.

8:15 “After this, the Levites will go in to do the work of the tent of meeting. So you must cleanse them and offer them like a wave offering.

Numbers 8:22-26

8:22 After this, the Levites went in to do their work in the tent of meeting before Aaron and before his sons. As the Lord had commanded Moses concerning the Levites, so they did.

The Work of the Levites

8:23 Then the Lord spoke to Moses: 8:24 “This is what pertains to the Levites: At the age of twenty-five years and upward one may begin to join the company in the work of the tent of meeting, 8:25 and at the age of fifty years they must retire from performing the work and may no longer work. 8:26 They may assist their colleagues in the tent of meeting, to attend to needs, but they must do no work. This is the way you must establish the Levites regarding their duties.”