From all the Israelites I have given the Levites to Aaron and his sons so that they may serve the Israelites at the Meeting Tent. They will help remove the Israelites’ sins so they will belong to the Lord and so that no disaster will strike the Israelites when they approach the Holy Place.”
After that, the Levites came to the Meeting Tent to work, and Aaron and his sons told them what to do. They did with the Levites what the Lord commanded Moses.
and they did; it was in the Desert of Sinai at twilight on the fourteenth day of the first month. The Israelites did everything just as the Lord commanded Moses.