Judges 1:24

1:24 the spies spotted a man leaving the city. They said to him, “If you show us a secret entrance into the city, we will reward you.”

Judges 3:24

3:24 When Ehud had left, Eglon’s servants came and saw the locked doors of the upper room. They said, “He must be relieving himself in the well-ventilated inner room.”

Judges 20:36

20:36 Then the Benjaminites saw they were defeated.

The Israelites retreated before Benjamin, because they had confidence in the men they had hid in ambush outside Gibeah.