Then David commanded that no one but the Levites were to carry the ark of God, for the Lord had chosen them to carry the ark of the Lord and to minister to him forever.
“but their duty shall be to assist the descendants of Aaron for the service of the house of the Lord, having the care of the courts and the chambers, the cleansing of all that is holy, and any work for the service of the house of God;
Thus they shall keep charge of the tent of meeting and the sanctuary and shall attend the descendants of Aaron, their kindred, for the service of the house of the Lord.”
Then they set the priests in their divisions and the Levites in their courses for the service of God at Jerusalem, as it is written in the book of Moses.
“The tent of meeting, with the camp of the Levites, shall set out in the center of the camps; they shall set out just as they camp, each in position, by their regiments.
At that time the Lord set apart the tribe of Levi to carry the ark of the covenant of the Lord, to stand before the Lord to minister to him and to bless in his name, to this day.