And the people of Israel did just as Joshua commanded and took up twelve stones out of the midst of the Jordan, according to the number of the tribes of the people of Israel, just as the LORD told Joshua. And they carried them over with them to the place where they lodged and laid them down there.
We may well imagine how busy Joshua and all the men of war were while they were passing over Jordan, when besides their own marching into an enemy's country, and in the face of the enemy, which could not but occasion them many thoughts of hear, they had their wives, and children, and families, their cattle, and tents, and all their effects, bag and baggage...
Commenting on Joshua 4:1-9
And the children of Israel did so as Joshua commanded,.... That is, the twelve men taken out of the twelve tribes of Israel, and who were the representatives of them in this action: and took up twelve stones out of the midst of Jordan, as the Lord spake unto Joshua, according to the number of the tribes of the children of Israel; they took the...
the children of Israel did so as Joshua commanded--that is, it was done by their twelve representatives.