Joshua 4:8
And the children of Israel did so as Joshua commanded, and took up twelve stones out of the midst of the Jordan, as Jehovah spake unto Joshua, according to the number of the tribes of the children of Israel; and they carried them over with them unto the place where they lodged, and laid them down there.
Joshua 1:16-18
And they answered Joshua, saying, All that thou hast commanded us we will do, and whithersoever thou sendest us we will go.
Joshua 4:2-5
Take you twelve men out of the people, out of every tribe a man,
Joshua 4:20
And those twelve stones, which they took out of the Jordan, did Joshua set up in Gilgal.