I am the Lord; why don't you fear me? Why don't you tremble before me? I placed the sand as the boundary of the sea, a permanent boundary that it cannot cross. The sea may toss, but it cannot go beyond it; the waves may roar, but they cannot break through.
When the priests who carry the Covenant Box of the Lord of all the earth put their feet in the water, the Jordan will stop flowing, and the water coming downstream will pile up in one place.”
the water stopped flowing and piled up, far upstream at Adam, the city beside Zarethan. The flow downstream to the Dead Sea was completely cut off, and the people were able to cross over near Jericho.