Judges 11:36-37

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

37And she said unto her father, Let this thing be done for me: let me alone two months, that I may go up and down upon the mountains, and bewail my virginity, I and my fellows.1