Judges 7:19-21

19So Gideon and the hundred men who were with him came to the edge of the camp at the beginning of the middle watch, when the guards had just been changed, and they blew the trumpets and smashed the pitchers that were in their hands.

20When three companies blew the trumpets and broke the pitchers, they held the torches in their left hands, and the trumpets in their right hands to blow, and they shouted, “A sword for the Lord and for Gideon!”

21Then each stood in his place around the camp; and the entire [Midianite] army ran, crying out as they fled.