Judges 20:29-35

29So Israel set up an ambush around Gibeah. 30On the third day the Israelites went up against the Benjamites and arrayed themselves against Gibeah as they had done before. 31The Benjamites came out against them and were drawn away from the city. They began to attack the people as before, killing about thirty men of Israel in the fields and on the roads, one of which led up to Bethel and the other to Gibeah.

32“We are defeating them as before,” said the Benjamites.

But the Israelites said, “Let us retreat and draw them away from the city onto the roads.”

33So all the men of Israel got up from their places and arrayed themselves at Baal-tamar, and the Israelites in ambush charged from their positions west of Gibeah.1 34Then 10,000 select men from all Israel made a frontal assault against Gibeah, and the battle was fierce. But the Benjamites did not realize that disaster was upon them. 35The LORD defeated Benjamin in the presence of Israel, and on that day the Israelites slaughtered 25,100 Benjamites, all armed with swords.