Then David said, “No one but the Levites may carry the ark of God, for the Lord chose them to carry the ark of the Lord and to minister to him for ever.”
And he said to the Levites who taught all Israel and who were holy to the Lord, “Put the holy ark in the house which Solomon the son of David, king of Israel, built; you need no longer carry it upon 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.
And Moses wrote this law, and gave it to the priests the sons of Levi, who carried the ark of the covenant of the Lord, and to all the elders of Israel.
and commanded the people, “When you see the ark of the covenant of the Lord your God being carried by the Levitical priests, then you shall set out from your place and follow it,
So Joshua the son of Nun called the priests and said to them, “Take up the ark of the covenant, and let seven priests bear seven trumpets of rams' horns before the ark of the Lord.”