Joshua 4:8
The Israelis did just as Joshua commanded. They took up twelve stones from the middle of the Jordan River just as the LORD had spoken to Joshua according to the number of the tribes of the Israelis, and they carried them over to where they would be pitching camp, and they put them down there.
Joshua 1:16-18
"We'll do everything that you commanded," they replied. "We'll go wherever you send us.
Joshua 4:2-5
"Gather together twelve men from the people one man from each tribe
Joshua 4:20
Joshua set up the twelve stones that they had removed from the Jordan River at Gilgal.