Judges 11:30-35

Amplified Bible

³⁰ Jephthah made a vow to the Lord and said, “If You will indeed give the Ammonites into my hand, ³¹ then whatever comes out of the doors of my house to meet me when I return in peace from the Ammonites, it shall be the Lord’s, and I will offer it up as a burnt offering.” ³² Then Jephthah crossed over to the Ammonites to fight with them; and the Lord gave them into his hand. ³³ And from Aroer to the entrance of Minnith he struck them, twenty cities, and as far as Abel-keramim (brook by the vineyard), with a very great defeat. So the Ammonites were subdued and humbled before the Israelites.

³⁴ Then Jephthah came to his house at Mizpah, and this is what he saw: his daughter coming out to meet him with tambourines and with dancing. And she was his only child; except for her he had no son or daughter. ³⁵ And when he saw her, he tore his clothes [in grief] and said, “Alas, my daughter! You have brought me great disaster, and you are the cause of ruin to me; for I have ^[a]made a vow to the Lord, and I cannot take it back.”