Gideon and the hundred men with him reached the edge of the camp at the beginning of the middle watch, just after they had changed the guard. They blew their trumpets and broke the jars that were in their hands. 20 The three companies blew the trumpets and smashed the jars. Grasping the torches in their left hands and holding in their right hands the trumpets they were to blow, they shouted, “A sword for the Lord and for Gideon!” 21 While each man held his position around the camp, all the Midianites ran, crying out as they fled.

22 When the three hundred trumpets sounded, the Lord caused the men throughout the camp to turn on each other with their swords. The army fled to Beth Shittah toward Zererah as far as the border of Abel Meholah near Tabbath. (NIV)

Not only does God use unlikely people in His purposes, He also gives to them unusual weapons. His ways are not our ways. His thoughts are not our thoughts. They are much, much higher (Is.55:8,9)

”For though we live in the world, we do not wage war as the world does. The weapons we fight with are not the weapons of the world. On the contrary, they have divine power to demolish strongholds.” (2 Cor. 10:3,4)

Again and again we find, in this spiritual warfare, that as we listen to God and obey Him, the battle is not ours, but His. We just have to hold our position (21) and see the salvation of God.

Gideon’s men already had the trumpets and provisions of the men who had been sent back (8). The trumpets were rams’ horns such as Joshua used at Jericho. Perhaps Joshua and his men could make the connection with that great battle, and be encouraged by the thought.

Tom Hale says, ‘Since trumpets were used only by military commanders (for signalling), three hundred trumpets represented a large army. Thus when Gideon’s men blew their trumpets, broke their jars, raised their torches, and shouted the battle cry – all in the middle watch (middle of the night) – the Midianites were convinced that a huge army was attacking them, and so they fled in panic (verse 21)…It was a mighty victory; in all likelihood, Gideon and his three hundred men had done no fighting at all – only blowing and shouting! (see Joshua 6:20).’