37 Then she said to her father, “Let this be done for me: Give me two months, and I and my friends will wander the hill country and mourn over my virginity.”
38 He said, “Go,” and he sent her away for two months. She and her friends went and mourned over her virginity in the hill country.
39 At the end of two months she returned to her father, and he did to her according to the vow that he had made. She had not ever slept with a man.So it became a custom in Israel
40 that the women of Israel would commemorate the daughter of Jephthah the Gileadite for four days each year.