Numbers 8:21-26 ▼

21 The Levites, too, purified themselves from sin and washed their clothes; and Aaron presented them as a wave offering before Yahweh. Aaron also made atonement for them to cleanse them.

22 Then after that the Levites went in to perform their service in the tent of meeting before Aaron and before his sons; just as Yahweh had commanded Moses concerning the Levites, so they did to them.

23 Now Yahweh spoke to Moses, saying,

24 “This is what applies to the Levites: from twenty-five years old and upward they shall enter to perform their duty in the service of the tent of meeting.

25 But at the age of fifty years they shall retire from their duty in the service and not serve anymore.

26 They may, however, minister to their brothers in the tent of meeting in order to keep up their responsibility, but they themselves shall perform no service. Thus you shall deal with the Levites concerning their responsibilities.”