Judges 11:33-38

³³He struck them from Aroer until you come to Minnith, even twenty cities, and to Abelcheramim, with a very great slaughter. So the children of Ammon were subdued before the children of Israel.

³⁴Jephthah came to Mizpah to his house; and behold, his daughter came out to meet him with tambourines and with dances. She was his only child. Besides her he had neither son nor daughter.

³⁵When he saw her, he tore his clothes, and said, “Alas, my daughter! You have brought me very low, and you are one of those who trouble me; for I have opened my mouth to the LORD, and I can’t go back.”

³⁶She said to him, “My father, you have opened your mouth to the LORD; do to me according to that which has proceeded out of your mouth, because the LORD has taken vengeance for you on your enemies, even on the children of Ammon.”

³⁷Then she said to her father, “Let this thing be done for me. Leave me alone two months, that I may depart and go down on the mountains, and bewail my virginity, I and my companions.”

³⁸He said, “Go.” He sent her away for two months; and she departed, she and her companions, and mourned her virginity on the mountains.