1 Chronicles 15:4

2Then David said, “No one ought to carry God’s ark but the Levites. For the LORD has chosen them to carry God’s ark, and to minister to him forever.”

3David assembled all Israel at Jerusalem, to bring up the LORD’s ark to its place, which he had prepared for it.

4David gathered together the sons of Aaron and the Levites:

5of the sons of Kohath, Uriel the chief, and his brothers one hundred twenty;

6of the sons of Merari, Asaiah the chief, and his brothers two hundred twenty;