In the Bible there are many references to the Jordan river. Joshua 03:17 “The priests who carried the ark of the covenant of the Lord stopped in the middle of the Jordan and stood on dry ground, while all Israel passed by until the whole nation had completed the crossing on dry ground.” The land West of the Jordan, was promised to the Israelites, but had to be gained through bitter conflict.

The East side was were they had come, and the West side was where they were going. Sort of like Caesar crossing the Rubicon.

As Joshua 05:01 “Now when all the Amorite kings west of the Jordan and all the Canaanite kings along the coast heard how the Lord had dried up the Jordan before the Israelites until they[a] had crossed over, their hearts melted in fear and they no longer had the courage to face the Israelites.”

In Numbers 33, The Lord speaks to Moses, 33:50 On the plains of Moab by the Jordan across from Jericho the Lord said to Moses, “Speak to the Israelites and say to them: ‘When you cross the Jordan into Canaan, drive out all the inhabitants of the land before you. Destroy all their carved images and their cast idols, and demolish all their high places. Take possession of the land and settle in it, for I have given you the land to possess.

Wikipedia has a reference to Jericho https://en.wikipedia.org/wiki/Jericho

1. Joshua 10:13 “So the Sun stood still, and the moon stopped, till the people had revenge upon their enemies. Is this not written in the Book of Jasher? So the sun stood still in the midst of heaven, and did not hasten to go down for about a whole day.”
2. There is no book of Jasher. Or if there is, it is not part of the Bible.
3. If your priests blow their horns, and the walls don’t come tumbling down, you have a big problem.
4. The Earth is round, so eventually if you head West, you will end up on the East side of the Jordan.
5. Consider that the Earth revolves around the Sun. What does it mean to write that the Moon stopped?

My interpretation is the Lord wants us to understand the limitations in these writings. They are only the beginning of understanding. And that it is evil simplistic and stupid to look at the story of Joshua as the Good Guys versus the Bad Guys.

The answer of course is God.