Final answer:
When the Priests with the Ark entered the Jordan River, the waters were stopped and stood in a heap, allowing them to stand on dry ground in the middle of the river while the Israelites crossed.
Step-by-step explanation:
The condition of the Jordan River when the Priests entered with the Ark is described in the Bible, specifically in the book of Joshua. According to the scripture, the river was at flood stage during harvest season. However, as soon as the priests who carried the Ark of the Covenant reached the Jordan and their feet touched the water's edge, the waters from upstream stopped flowing. It piled up in a heap a great distance away, at a town called Adam in the vicinity of Zarethan, while the water flowing down to the Sea of the Arabah (that is, the Dead Sea) was completely cut off. So, the people crossed over opposite Jericho. The priests who carried the Ark of the Covenant of the Lord stood firm on dry ground in the middle of the Jordan, while all Israel passed by until the whole nation had completed the crossing on dry ground.