Joshua said to them: "Go to the bed of the Jordan in front of the ark of the LORD, your God; lift to your shoulders one stone apiece, so that they will equal in number the tribes of the Israelites.
In the future, these are to be a sign among you. When your children ask you what these stones mean to you, you shall answer them, 'The waters of the Jordan ceased to flow before the ark of the covenant of the LORD when it crossed the Jordan.' Thus these stones are to serve as a perpetual memorial to the Israelites."