Joshua 3:4-8

Then you will know which way to go, since you have never been this way before. But keep a distance of about two thousand cubits between you and the ark; do not go near it.” Joshua told the people, “Consecrate yourselves, for tomorrow the LORD will do amazing things among you.” Joshua said to the priests, “Take up the ark of the covenant and pass on ahead of the people.” So they took it up and went ahead of them. And the LORD said to Joshua, “Today I will begin to exalt you in the eyes of all Israel, so they may know that I am with you as I was with Moses. Tell the priests who carry the ark of the covenant: ‘When you reach the edge of the Jordan’s waters, go and stand in the river.’ ”