Judges 7:18-19

When I and all who are with me blow the trumpet (ram’s horn), then all around the camp you also blow the trumpets and shout, ‘For the LORD and for Gideon!’ ” So 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.