Judges 7:19-20

Just before midnight, after the changing of the Midianite guard, Gideon and his hundred men came to the outskirts of the camp. Then each of the three groups blew the shofars and broke the clay jars that hid the torches inside. They held their torches in their left hands, the shofars in their right, and shouted a thunderous battle cry, “A sword for YAHWEH and for Gideon!”