The children of Israel crossed over the Jordan on dry ground. Joshua 3:16 says, “That the waters which came down from upstream stood still, and arose in a heap very far away…and the people crossed over opposite Jericho.”
Isaiah 55:9 says, “For as the heavens are higher than the earth, so are My ways higher than your ways, and My thoughts than your thoughts.: God’s way to destroy Jericho are too high for man to understand.
We get a glimpse from Joshua 2 from Rahab who hid the two spies Joshua sent out. Verse 10 says, “For we heard how the Lord dried up the water of the Red Sea…” Verse 11 says, “As soon as we heard these things, our hearts melted; neither did there remain any more courage in anyone because of you, for the Lord your God, He is God in heaven above and earth beneath.”
The Lord told Joshua what He was going to do. Joshua 6:1 says, “Now Jericho was securely shut up because of the children of Israel…” Verse 10 says, “…You shall not shout or make any noise with your voice, nor shall a word proceed out of your mouth…”