Joshua 3:15-16 (NIV)
Now the Jordan is at flood stage all during harvest. Yet as soon as the priests who carried the ark reached the Jordan and their feet touched the water’s edge, the water from upstream stopped flowing. It piled up in a heap a great distance away.
Must have been scary, with the river at flood stage. Did the priests look at each other in fear, thinking “We’re all gonna drown.”
If the water piled up before they walked into the river, it wouldn’t be a step of faith.