Judges 11:36-37

36And she said to him, My father, if thou hast opened thy mouth to Jehovah, do to me according to that which has proceeded out of thy mouth; forasmuch as Jehovah has taken vengeance for thee upon thine enemies, upon the children of Ammon.

37And she said to her father, Let this thing be done for me: leave me alone two months, that I may go and descend to the mountains, and bewail my virginity, I and my companions.