Numbers 8:3-9
English Standard Version
Chapter 8
3And Aaron did so: he set up its lamps in front of the lampstand, as the Lord commanded Moses. 4And this was the workmanship of the lampstand, hammered work of gold. From its base to its flowers, it was hammered work; according to the pattern that the Lord had shown Moses, so he made the lampstand.
5And the Lord spoke to Moses, saying,
6"Take the Levites from among the people of Israel and cleanse them.
7Thus you shall do to them to cleanse them: sprinkle the water of purification upon them, and let them go with a razor over all their body, and wash their clothes and cleanse themselves.
8Then let them take a bull from the herd and its grain offering of fine flour mixed with oil, and you shall take another bull from the herd for a sin offering.
9And you shall bring the Levites before the tent of meeting and assemble the whole congregation of the people of Israel.