Thematic Bible: Memorial stones

Take twelve men for you out of the people, a man out of every tribe, and command them saying, Take twelve stones from here, out of the middle of Jordan, out of the place where the priests' feet stood firm. And you shall carry them over with you, and leave them in the place where you shall stay tonight. Then Joshua called the twelve men whom he had prepared from the sons of Israel, a man out of every tribe. read more.
And Joshua said to them, Pass over in front of the ark of Jehovah your God into the middle of the Jordan. And every man take a stone on his shoulder, according to the number of the tribes of the sons of Israel, so that this may be a sign to you when your sons ask in time to come, saying, What do you mean by these stones? Then you shall answer them, The waters of Jordan were cut off before the ark of the covenant of Jehovah. When it passed over Jordan, the waters of Jordan were cut off, and these stones shall be for a memorial to the sons of Israel forever. And the sons of Israel did as Joshua commanded. And they took up twelve stones out of the middle of the Jordan, as Jehovah spoke to Joshua, according to the number of the tribes of the sons of Israel, and carried them over with them to the place where they stayed, and laid them down there; even the twelve stones Joshua lifted up in the middle of Jordan, in the place where the feet of the priests who carried the ark of the covenant, stood. And they are there to this day.