Judges 11:26-32
English Standard Version
Chapter 11
26While Israel lived in Heshbon and its villages, and in Aroer and its villages, and in all the cities that are on the banks of the Arnon, 300 years, why did you not deliver them within that time? 27I therefore have not sinned against you, and you do me wrong by making war on me. The Lord, the Judge, decide this day between the people of Israel and the people of Ammon." 28But the king of the Ammonites did not listen to the words of Jephthah that he sent to him.
29Then the Spirit of the Lord was upon Jephthah, and he passed through Gilead and Manasseh and passed on to Mizpah of Gilead, and from Mizpah of Gilead he passed on to the Ammonites.
30And Jephthah made a vow to the Lord and said, "If you will give the Ammonites into my hand,
31then whatever comes out from the doors of my house to meet me when I return in peace from the Ammonites shall be the Lord 's, and I will offer it up for a burnt offering."
32So Jephthah crossed over to the Ammonites to fight against them, and the Lord gave them into his hand.