Joshua 3:16-17

the waters which were flowing down from above stopped and rose up in one mass a great distance away at Adam, the city that is beside Zarethan. Those [waters] flowing downward toward the sea of the Arabah, the Salt Sea, were completely cut off. So the people crossed [the river] opposite Jericho. [Ps 114] And while all [the people of] Israel crossed over on dry ground, the priests who carried the ark of the covenant of the LORD stood firm on dry ground in the midst of the Jordan [riverbed], until all the nation had finished crossing over the Jordan.