Joshua also set up twelve stones in the middle of the Jordan right where the priests carrying the Ark of the Agreement had stood, and they are still there to this very day.
Elijah took twelve stones to represent the tribes of the sons of Jacob. (Jacob was the one who received the Lord's message that said, “Israel shall be your name.”)
The poles were so long that their ends could be seen from the Holy Place in front of the Most Holy Place, but not from outside. They are there to this day.
Then the Lord told Moses, “Come up the mountain to me, and stay here, so I can give you the stone tablets, with the instructions and commands I have written for them to learn.”
The priests carrying the Ark remained standing in the middle of the Jordan until everything was done just as the Lord had told the people to do, all that Moses had told Joshua to do. The people crossed over quickly.