Numbers 8:1-9

The LORD said to Moses, “Give Aaron the following instructions: When you set up the seven lamps in the lampstand, place them so their light shines forward in front of the lampstand.” So Aaron did this. He set up the seven lamps so they reflected their light forward, just as the LORD had commanded Moses. The entire lampstand, from its base to its decorative blossoms, was made of beaten gold. It was built according to the exact design the LORD had shown Moses. Then the LORD said to Moses, “Now set the Levites apart from the rest of the people of Israel and make them ceremonially clean. Do this by sprinkling them with the water of purification, and have them shave their entire body and wash their clothing. Then they will be ceremonially clean. Have them bring a young bull and a grain offering of choice flour moistened with olive oil, along with a second young bull for a sin offering. Then assemble the whole community of Israel, and present the Levites at the entrance of the Tabernacle.