Judges 21:3-5

New Revised Standard Version, Anglicised

³ They said, ‘O Lord, the God of Israel, why has it come to pass that today there should be one tribe lacking in Israel?’ ⁴ On the next day, the people got up early, and built an altar there, and offered burnt-offerings and sacrifices of well-being. ⁵ Then the Israelites said, ‘Which of all the tribes of Israel did not come up in the assembly to the Lord?’ For a solemn oath had been taken concerning whoever did not come up to the Lord to Mizpah, saying, ‘That one shall be put to death.’