New American Standard Bible (NASB)
Judges 11
35 When 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 given my word to the Lord, and I cannot take it back."
36 So she said to him, "My father, you have given your word to the Lord; do to me as you have said, since the Lord has avenged you of your enemies, the sons of Ammon."
37 She said to her father, "Let this thing be done for me; let me alone two months, that I may go to the mountains and weep because of my virginity, I and my companions."
38 Then 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.
39 At the end of two months she returned to her father, who did to her according to the vow which he had made; and she had no relations with a man. Thus it became a custom in Israel,
40 that the daughters of Israel went yearly to commemorate the daughter of Jephthah the Gileadite four days in the year.
Judges 12
1 Then the men of Ephraim were summoned, and they crossed to Zaphon and said to Jephthah, "Why did you cross over to fight against the sons of Ammon without calling us to go with you? We will burn your house down on you."
2 Jephthah said to them, "I and my people were at great strife with the sons of Ammon; when I called you, you did not deliver me from their hand.
3 When I saw that you would not deliver me, I took my life in my hands and crossed over against the sons of Ammon, and the Lord gave them into my hand. Why then have you come up to me this day to fight against me?"
4 Then Jephthah gathered all the men of Gilead and fought Ephraim; and the men of Gilead defeated Ephraim, because they said, "You are fugitives of Ephraim, O Gileadites, in the midst of Ephraim and in the midst of Manasseh."
5 The Gileadites captured the fords of the Jordan opposite Ephraim. And it happened when any of the fugitives of Ephraim said, "Let me cross over," the men of Gilead would say to him, "Are you an Ephraimite?" If he said, "No,"