Judges 20:36-38

Young's Literal Translation

³⁶ And the sons of Benjamin see that they have been smitten -- and the men of Israel give place to Benjamin, for they have trusted unto the ambush which they had set against Gibeah,

³⁷ and the ambush have hasted, and push against Gibeah, and the ambush draweth itself out, and smiteth the whole of the city by the mouth of the sword.

³⁸ And there was the appointed sign to the men of Israel with the ambush -- their causing to go up a great volume of smoke from the city.