Judges 12:2-3

12:2 Jephthah said to them, “My people and I were entangled in controversy with the Ammonites. I asked for your help, but you did not deliver me from their power. 12:3 When I saw that you were not going to help, I risked my life and advanced against the Ammonites, and the Lord handed them over to me. Why have you come up to fight with me today?”