Judges 12:2-3

²Jephthah said to them, “I and my people were at great strife with the sons of Ammon; when I called you, you did not deliver me from their hand. ³When I saw that you would not deliver me, I took my life in my hands and crossed over against the sons of Ammon, and the Lord gave them into my hand. Why then have you come up to me this day to fight against me?”