Therefore I have not sinned against you, but you do me wrong to war against me: the LORD the Judge be judge this day between the children of Israel and the children of Ammon.
Read Chapter 11
George Leo Haydock
And decide. Literally, "the arbiter of this day. "Jephte is so well convinced of the justice of his cause, that he is willing to abide by God's decision, (Haydock) to be manifested by the issue of the battle. (Menochius)
At the same time, he threatens the Ammonites with God's judgments, if by their fault blood be shed unjustly, as he, like a good prince, had tried every means to prevent that misfortune, and to bring things to an amicable conclusion. (Calmet)