I therefore have not sinned against you, but you do me wrong to war against me: Yahweh, the Judge, be judge this day between the children of Israel and the children of Ammon.
This concluded Jephthah's efforts to avoid the war by diplomatic activity.  The king of the children of Ammon could not answer the arguments of Jephthah and therefore made no reply whatever to Jephthah's arguments. Therefore, the war would be fought, and Jephthah's first action was to appeal to Jehovah, the Judge, as both sides of the dispute had resort to arbitration by the edge of the sword.