Joshua 4:8-12

⁸And the children of Israel did so, as the Lord commanded Joshua; and they took up twelve stones out of the midst of Jordan (as the Lord commanded Joshua, when the children of Israel had completely passed over), and carried these stones with them into the camp, and laid them down there.

⁹And Joshua set also other twelve stones in Jordan itself, in the place that was under the feet of the priests that bore the ark of the covenant of the Lord; and there they are to this day.

¹⁰And the priests that bore the ark of the covenant stood in Jordan, until Joshua had finished all that the Lord commanded him to report to the people; and the people hastened and passed over.

¹¹And it came to pass when all the people had passed over, that the ark of the covenant of the Lord passed over, and the stones before them.

¹²And the sons of Reuben, and the sons of Gad, and the half tribe of Manasseh passed over armed before the children of Israel, as Moses commanded them.