Judges 11:37 DBY

³⁵  And when he saw her, he rent his clothes, and said, 'Alas, my daughter! you have brought me very low, and you have become the cause of great trouble to me; for I have opened my mouth to the LORD, and I cannot take back my vow.'

³⁶  And she said to him, 'My father, if you have opened your mouth to the LORD, do to me according to what has gone forth from your mouth, now that the LORD has avenged you on your enemies, on the Ammonites.'

³⁷  And she said to her father, 'Let this thing be done for me; let me alone two months, that I may go and wander on the mountains, and bewail my virginity, I and my companions.'

³⁸  And he said, 'Go.' And he sent her away for two months; and she departed, she and her companions, and bewailed her virginity upon the mountains.

³⁹  And at the end of two months, she returned to her father, who did with her according to his vow which he had made. She had never known a man. And it became a custom in Israel