Judges 11:37-39

37And she said to her father, “Let this one thing be done for me; let me alone for two months, so that I may go to the mountains and weep over my virginity, I and my companions.”

38And he said, “Go.” So he sent her away for two months; and she left with her companions, and wept over her virginity on the mountains.

39At the end of two months she returned to her father, who did to her as he had vowed; and she had no relations with a man. It became a custom in Israel,