Joshua 3:3-8

3and commanded the people, “As soon as you see the ark of the covenant of the Lord your God being carried by athe Levitical priests, then you shall set out from your place and follow it. 4 bYet there shall be a distance between you and it, about 2,000 cubits
A  cubit was about 18 inches or 45 centimeters
in length. Do not come near it, in order that you may know the way you shall go, for you have not passed this way before.”
5Then Joshua said to the people, dConsecrate yourselves, for tomorrow the Lord will do wonders among you.” 6And Joshua said to the priests, e“Take up the ark of the covenant and pass on before the people.” So they took up the ark of the covenant and went before the people.

7The Lord said to Joshua, “Today I will begin to fexalt you in the sight of all Israel, that they may know that, gas I was with Moses, so I will be with you. 8And as for you, command hthe priests who bear the ark of the covenant, ‘When you come to the brink of the waters of the Jordan, iyou shall stand still in the Jordan.’”

Joshua 6:6

6So 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.”

1 Chronicles 15:11-12

11Then David summoned the priests jZadok and kAbiathar, and the Levites Uriel, Asaiah, Joel, Shemaiah, Eliel, and Amminadab, 12and said to them, “You are the heads of the fathers’ houses of the Levites. lConsecrate yourselves, you and your brothers, so that you may bring up the ark of the Lord, the God of Israel, mto the place that I have prepared for it.
Copyright information for ESV