Judges 11:38 in the King James Version
And he said, Go. And he sent her away for two months: and she went with her companions, and bewailed her virginity upon the mountains.
Context
37 Then 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.”
38 He said, “Go.” He sent her away for two months; and she departed, she and her companions, and mourned her virginity on the mountains.
39 At the end of two months, she returned to her father, who did with her according to his vow which he had vowed. She was a virgin. It became a custom in Israel