„Indeed, all the firstborn among the Israelites, human being and beast alike, belong to me; I consecrated them to myself on the day I killed all the firstborn in the land of Egypt. 18But I have taken the Levites in place of all the firstborn Israelites; 19and from among the Israelites I have given to Aaron and his sons these Levites, who are to be dedicated, to perform the service of the Israelites in the tent of meeting and to make atonement for them, so that no plague may strike among the Israelites should they come too near the sanctuary. 20This, then, is what Moses and Aaron and the whole community of the Israelites did with respect to the Levites; the Israelites did exactly as the LORD had commanded Moses concerning them. 21When the Levites had purified themselves and washed their garments, Aaron presented them as an elevated offering before the LORD, and made atonement for them to cleanse them. 22Only then did they enter upon their service in the tent of meeting under the supervision of Aaron and his sons. Exactly as the LORD had commanded Moses concerning the Levites, so it was done with regard to them”.