Joshua 4:9-10

9Then Joshua set up twelve 1stones in the middle 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 middle of the Jordan until everything was completed that the Lord had commanded Joshua to speak to the people, according to all that Moses had commanded Joshua. And the people hurried and crossed;