And Joshua said to the people, “Sanctify yourselves; for tomorrow the LORD will do wonders among you.” And Joshua said to the priests, “Take up the ark of the covenant, and pass on before the people.” And they took up the ark of the covenant, and went before the people. And the LORD said to Joshua, “This day I will begin to exalt you in the sight of all Israel, that they may know that, as I was with Moses, so I will be with you. And you shall command the priests who bear the ark of the covenant, ‘When you come to the brink of the waters of the Jordan, you shall stand still in the Jordan.'”
–Joshua 3:5-8