Judges 11:34-40

34When Jephthah came to his house at 1Mizpah, behold, his daughter was coming out to meet him 2with tambourines and with dancing. Now she was his one and only child; besides her he had no son or daughter.

35When he saw her, he tore his clothes and said, “Alas, my daughter! You have brought me very low, and you are among those who trouble me; for I have 3given my word to the Lord, and 4I cannot take it back.”

36So she said to him, “My father, you have 5given your word to the Lord; 6do to me 7as you have said, since the Lord has avenged you of your enemies, the sons of Ammon.”

37She said to her father, “Let this thing be done for me; let me alone two months, that I may 8go to the mountains and weep because of 9my virginity, I and my companions.”

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

39At the end of two months she returned to her father, who did to her according to the vow which he had made; and she 10had no relations with a man. Thus it became a custom in Israel,

40that the daughters of Israel went yearly to 11commemorate the daughter of Jephthah the Gileadite four days in the year.