20. And Moses and Aaron, and all the assembly of the children of Israel, did to the Levites according to all that Jehovah had commanded Moses concerning the Levites: so did the children of Israel to them.
21. And the Levites purified themselves from sin, and they washed their garments; and Aaron offered them as a wave-offering before Jehovah; and Aaron made atonement for them to cleanse them.
22. And afterwards the Levites came in to perform their service in the tent of meeting before Aaron, and before his sons; as Jehovah had commanded Moses concerning the Levites, so did they to them.
23. And Jehovah spoke to Moses, saying,
24. This is that which concerneth the Levites: from twenty-five years old and upward shall he come to labour in the work of the service of the tent of meeting.