Then he gave orders: “Nobody is to carry the Ark of God except the Levites, for the Lord himself chose them to carry the Ark of the Lord and to serve him forever.”
In addition they brought 220 of the Temple servants, a group appointed by David and his officials to help the Levites. These were all registered by name.
Do you think it's something insignificant that the God of Israel chose you from all the other Israelites and allowed you to approach him and carry out the work in the Lord's Tabernacle, to stand before the Israelites and serve them?
The Levites have been completely given over to me by the Israelites. I have accepted them as mine in place of all the firstborn sons of the Israelites.
Of all the Israelites, the Levites are a gift from me to Aaron and his sons to serve the Israelites at the Tent of Meeting, and on their behalf to set them right, so that nothing bad will happen to them when they come to the sanctuary.”