They appointed the priests by their divisions and the Levites by their divisions over the worship of God at Jerusalem, in accord with the book of Moses.
and some of the temple servants that David and his officials had established for the work of the Levites – 220 of them. They were all designated by name.
Does it seem too small a thing to you that the God of Israel has separated you from the community of Israel to bring you near to himself, to perform the service of the tabernacle of the Lord, and to stand before the community to minister to them?
“Bring with you your brothers, the tribe of Levi, the tribe of your father, so that they may join with you and minister to you while you and your sons with you are before the tent of the testimony.
For 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.
I 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.”