Joshua 6:12-15 - They marched around the city

6:12-14

The plan was put into action the following morning, with the priests taking up the ark of the covenant, and the trumpet playing priests going on ahead of the ark.There was an armed guard ahead of the ark, and the rest of the army behind the ark. The trumpets kept sounding. The operation was repeated for six days. As noted earlier, this is essentially a repeat of the instructions given to Joshua, the point of this is to stress that things were carried out according to the Lord’s instructions. This has two implications, one is  that Israel obeyed the Lord, and the other is that victory came because they followed the Lord’s instructions.

6:15

We now come to the seventh day. The same plan was carried out, except this time they marched around the city seven times. Now we know victory came because of a miraculous act of the Lord, but the slow build up, and then the rapid increase in intensity, would build up the tension and fear within the people of Jericho.