Judges 20:36-37

³⁶And the children of Benjamin saw that they were defeated; for the men of Israel gave place to the Benjamites, because they trusted unto those that lay in wait whom they had set against Gib'ah.

³⁷And those in ambush hastened, and spread themselves over Gib'ah; and those that lay in wait moved along, and smote all the city with the edge of the sword.