Joshua 4:8-18

8 So the children of Israel did as Joshua gave them orders, and took twelve stones from the middle of Jordan, as the Lord had said to Joshua, one for every tribe of the children of Israel; these they took across with them to their night's resting-place and put them down there.
9 And Joshua put up twelve stones in the middle of Jordan, where the feet of the priests who took up the ark of the agreement had been placed: and there they are to this day.
10 For the priests who took up the ark kept there in the middle of Jordan till all the orders given to Joshua by Moses from the Lord had been done: then the people went over quickly.
11 And when all the people had come to the other side, the ark of the Lord went over, and the priests, before the eyes of the people.
12 And the children of Reuben and the children of Gad and the half-tribe of Manasseh went over armed before the children of Israel as Moses had said to them:
13 About forty thousand armed for war went over before the Lord to the fight, to the lowlands of Jericho.
14 That day the Lord made Joshua great in the eyes of all Israel; and all the days of his life they went in fear of him, as they had gone in fear of Moses.
15 Then the Lord said to Joshua,
16 Give orders to the priests who take up the ark of witness, to come up out of Jordan.
17 So Joshua gave orders to the priests, saying, Come up now out of Jordan.
18 And when the priests who took up the ark of the Lord's agreement came up out of Jordan and their feet came out on to dry land, the waters of Jordan went back to their place, overflowing its edges as before.