Judges 7:18-20

18When I and all that are with me blow the shofar, then you also blow the shofarot all around the camp, and say, ‘For Adonai and for Gideon!’”

19So Gideon and the 300 men who were with him came up to the outermost part of the camp at the beginning of the middle watch, when they had just posted the watch. Then they blew the shofarot and smashed the pitchers that were in their hands.

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