Judges 20:31-32

31The Benjamites went out against their army and were lured away from the city, and they began to strike and kill some of the people as at other times, on the highways, one of which goes up to Bethel and the other to Gibeah, and in the open country, about thirty men of Israel.

32And the Benjamites said, “They are defeated before us, as at the first.” But the sons of Israel said, “Let us flee and lure them away from the city to the highways.”