4This is how the lampstand was made: It was beaten work in gold; from its shaft to its flowers it was beaten work. According to the pattern which the LORD had shown Moses, so he made the lampstand.
7And 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.
8Then 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.
12When 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.
16For they are entirely given to me from among the Israelites. I have taken them for myself instead of all who open the womb, the firstborn sons of all the Israelites.
17For all the firstborn males among the Israelites are mine, both humans and animals; when I destroyed all the firstborn in the land of Egypt I set them apart for myself.
19I have given the Levites as a gift to Aaron and his sons from among the Israelites, to do the work for the Israelites in the tent of meeting, and to make atonement for the Israelites, so there will be no plague among the Israelites when the Israelites come near the sanctuary."
20So Moses and Aaron and the entire community of the Israelites did this with the Levites. According to all that the LORD commanded Moses concerning the Levites, this is what the Israelites did with them.
21The Levites purified themselves and washed their clothing; then Aaron presented them like a wave offering before the LORD, and Aaron made atonement for them to purify them.
22After 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.
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,
26They 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."