וַיֹּאמְר֣וּ לְיִפְתָּ֔ח לְכָ֕ה וְהָיִ֥יתָה לָּ֖נוּ לְקָצִ֑ין וְנִֽלָּחֲמָ֖ה בִּבְנֵ֥י עַמּֽוֹן׃
And they said unto Jephthah: ‘Come and be our chief, that we may fight with the children of Ammon.’
Read midrashic interpretation of Judges 11:6: and classical rabbinic exegesis.