Judges 20:40 DBY

³⁸  Now the appointed signal between the men of Israel and the men in ambush was that when they made a great cloud of smoke rise up out of the city

³⁹  the men of Israel should turn in battle. Now Benjamin had begun to smite and kill about thirty men of Israel; they said, 'Surely they are smitten down before us, as in the first battle.'

⁴⁰  But when the signal began to rise out of the city in a column of smoke, the Benjaminites looked behind them; and behold, the whole of the city went up in smoke to heaven.

⁴¹  Then the men of Israel turned, and the men of Benjamin were dismayed, for they saw that disaster was close upon them.

⁴²  Therefore they turned their backs before the men of Israel in the direction of the wilderness; but the battle overtook them, and those who came out of the cities destroyed them in the midst of them.