Judges 7:18-20

18When I blow the trumpet, I and all that are with me, then blow ye the trumpets also on every side of all the camp, and say, For Jehovah and for Gideon.

19So Gideon, and the hundred men that were with him, came unto the outermost part of the camp in the beginning of the middle watch, when they had but newly set the watch: and they blew the trumpets, and brake in pieces the pitchers that were in their hands. 20And the three companies blew the trumpets, and brake the pitchers, and held the torches in their left hands, and the trumpets in their right hands wherewith to blow; and they cried, The sword of Jehovah and of Gideon.