Judges 11:38-40

Good News Translation

³⁸ He told her to go and sent her away for two months. She and her friends went up into the mountains and grieved because she was going to die unmarried and childless. ³⁹ After two months she came back to her father. He did what he had promised the Lord, and she died still a virgin.

This was the origin of the custom in Israel ⁴⁰ that the Israelite women would go out for four days every year to grieve for the daughter of Jephthah of Gilead.