11 Jephthah the Gileadite was a mighty warrior. His father was Gilead; his mother was a prostitute. 2 Gilead’s wife also bore him sons, and when they were grown up, they drove Jephthah away. ‘You are not going to get any inheritance in our family,’ they said, ‘because you are the son of another woman.’ 3 So Jephthah fled from his brothers and settled in the land of Tob, where a gang of scoundrels gathered around him and followed him.
4 Some time later, when the Ammonites were fighting against Israel, 5 the elders of Gilead went to get Jephthah from the land of Tob. 6 ‘Come,’ they said, ‘be our commander, so we can fight the Ammonites.’
7 Jephthah said to them, ‘Didn’t you hate me and drive me from my father’s house? Why do you come to me now, when you’re in trouble?’
8 The elders of Gilead said to him, ‘Nevertheless, we are turning to you now; come with us to fight the Ammonites, and you will be head over all of us who live in Gilead.’
9 Jephthah answered, ‘Suppose you take me back to fight the Ammonites and the Lord gives them to me – will I really be your head?’
10 The elders of Gilead replied, ‘The Lord is our witness; we will certainly do as you say.’
29 Then the Spirit of the Lord came on Jephthah. He crossed Gilead and Manasseh, passed through Mizpah of Gilead, and from there he advanced against the Ammonites. 30 And Jephthah made a vow to the Lord: ‘If you give the Ammonites into my hands, 31 whatever comes out of the door of my house to meet me when I return in triumph from the Ammonites will be the Lord’s, and I will sacrifice it as a burnt offering.’
32 Then Jephthah went over to fight the Ammonites, and the Lord gave them into his hands. 33 He devastated twenty towns from Aroer to the vicinity of Minnith, as far as Abel Keramim. Thus Israel subdued Ammon.
34 When Jephthah returned to his home in Mizpah, who should come out to meet him but his daughter, dancing to the sound of tambourines! She was an only child. Except for her he had neither son nor daughter. 35 When he saw her, he tore his clothes and cried, ‘Oh no, my daughter! You have brought me down and I am devastated. I have made a vow to the Lord that I cannot break.’
36 ‘My father,’ she replied, ‘you have given your word to the Lord. Do to me just as you promised, now that the Lord has avenged you of your enemies, the Ammonites. 37 But grant me this one request,’ she said. ‘Give me two months to roam the hills and weep with my friends, because I will never marry.’
38 ‘You may go,’ he said. And he let her go for two months. She and her friends went into the hills and wept because she would never marry. 39 After the two months, she returned to her father, and he did to her as he had vowed. And she was a virgin.
From this comes the Israelite tradition 40 that each year the young women of Israel go out for four days to commemorate the daughter of Jephthah the Gileadite.