Reference

Judges 21:3

And said, O Lord God of Israel, why is this come to pass in Israel, that there should be to day one tribe lacking in Israel?
1

Now the men of Israel had sworn in Mizpeh, saying, There shall not any of us give his daughter unto Benjamin to wife.

2

And the people came to the house of God, and abode there till even before God, and lifted up their voices, and wept sore;

3

And said, O Lord God of Israel, why is this come to pass in Israel, that there should be to day one tribe lacking in Israel?

4

And it came to pass on the morrow, that the people rose early, and built there an altar, and offered burnt offerings and peace offerings.

5

And the children of Israel said, Who is there among all the tribes of Israel that came not up with the congregation unto the Lord? For they had made a great oath concerning him that came not up to the Lord to Mizpeh, saying, He shall surely be put to death.