'Pitchers' in the Bible

He divided the three hundred men into three companies, and he put into the hands of all of them trumpets, and empty pitchers, with torches within the pitchers.

So Gideon, and the hundred men who were with him, came to 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 broke in pieces the pitchers that were in their hands.

The three companies blew the trumpets, and broke the pitchers, and held the torches in their left hands, and the trumpets in their right hands with which to blow; and they shouted, "The sword of Yahweh and of Gideon!"