Shofetim 11:33-35

Orthodox Jewish Bible

³³ And he struck them down from Aroer, even till thou come to Minnit, even 20 towns, unto Avel-Kramim, with a very great slaughter. Thus the Bnei Ammon were subdued before the Bnei Yisroel.

³⁴ And Yiftach came to Mitzpah unto his bais, hinei, his bat came out to meet him with tambourines and with dances; she was his yechidah (only one); beside her he had neither ben nor bat.

³⁵ And it came to pass, when he saw her, that he tore his clothes, and said, Alas, my bat! Thou hast brought me very low, and thou art one of them that trouble me; for I have opened my mouth unto Hashem, and I cannot go back.