Joshua 4:8-10

8So the [twelve men chosen from the] sons of Israel did as Joshua commanded, and took up twelve stones out of the midst of the Jordan, according to the number of the tribes of the sons of Israel, just as the Lord had spoken to Joshua; and they carried them over with them to the place where they were spending the night and put them down there.

9Then Joshua set up [a second monument of] twelve stones in the midst of the Jordan at the place where the feet of the priests who carried the ark of the covenant were standing, and they are there to this day.

10For the priests who carried the ark were standing in the midst of the Jordan until everything was finished that the Lord had commanded Joshua to tell the people, in accordance with everything that Moses had commanded Joshua. The people hurried and crossed [the dry riverbed];