Judges 2:15

2:15 Whenever they went out to fight, the Lord did them harm, just as he had warned and solemnly vowed he would do. They suffered greatly.

Judges 21:3

21:3 They said, “Why, O Lord God of Israel, has this happened in Israel?” An entire tribe has disappeared from Israel today!”

Judges 21:5

21:5 The Israelites asked, “Who from all the Israelite tribes has not assembled before the Lord?” They had made a solemn oath that whoever did not assemble before the Lord at Mizpah must certainly be executed.