Judges 11:36-37

36And she said to him, "My father, you have opened your mouth to the Lord; do to me according to what has gone out of your mouth, now that the Lord has avenged you on your enemies, on the Ammonites."

37So she said to her father, "Let this thing be done for me: leave me alone two months, that I may go up and down on the mountains and weep for my virginity, I and my companions."