Then David said, “No one may carry the ark of God except the Levites since the Lord chose them to carry the ark of the Lord and to minister before Him always.”
And he said to the Levites who gave insight to all Israel and were consecrated to the Lord, “Set the holy ark in the house that Solomon, the son of David and king of Israel, built. You should not carry it on your shoulders. Now serve the Lord your God and His people Israel.
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.
They commanded the people, “When you see the ark of the covenant of the Lord your God and the Levite priests carrying it, then you shall set out from where you are and go behind it.
So Joshua son of Nun summoned the priests and said to them, “Take up the ark of the covenant. Seven priests bearing seven ram’s horn trumpets shall be in front of the ark of the Lord.”