Joshua 6:2-5 NIV

[2] Then the LORD said to Joshua, “See, I have delivered Jericho into your hands, along with its king and its fighting men. [3] March around the city once with all the armed men. Do this for six days. [4] Have seven priests carry trumpets of rams’ horns in front of the ark. On the seventh day, march around the city seven times, with the priests blowing the trumpets. [5] When you hear them sound a long blast on the trumpets, have the whole army give a loud shout; then the wall of the city will collapse and the army will go up, everyone straight in.”