34 Then Jephthah came back to his house in Mizpah, and his daughter came out, meeting him on his way with music and with dances; she was his only child; he had no other sons or daughters. 35 And when he saw her he was overcome with grief, and said, Ah! my daughter! I am crushed with sorrow, and it is you who are the chief cause of my trouble; for I have made an oath to the Lord and I may not take it back. 36 And she said to him, My father, you have made an oath to the Lord; do then to me whatever you have said; for the Lord has sent a full reward on your haters, on the children of Ammon. 37 Then she said to her father, Only do this for me: let me have two months to go away into the mountains with my friends, weeping for my sad fate. 38 And he said, Go then. So he sent her away for two months; and she went with her friends to the mountains, weeping for her sad fate. 39 And at the end of two months she went back to her father, who did with her as he had said in his oath: and she had never been touched by a man. So it became a rule in Israel, 40 For the women to go year by year sorrowing for the daughter of Jephthah the Gileadite, four days in every year.
Matthew Henry's Commentary on Judges 11:34-40
Commentary on Judges 11:29-40
(Read Judges 11:29-40)
Several important lessons are to be learned from Jephthah's vow. 1. There may be remainders of distrust and doubting, even in the hearts of true and great believers. 2. Our vows to God should not be as a purchase of the favour we desire, but to express gratitude to him. 3. We need to be very well-advised in making vows, lest we entangle ourselves. 4. What we have solemnly vowed to God, we must perform, if it be possible and lawful, though it be difficult and grievous to us. 5. It well becomes children, obediently and cheerfully to submit to their parents in the Lord. It is hard to say what Jephthah did in performance of his vow; but it is thought that he did not offer his daughter as a burnt-offering. Such a sacrifice would have been an abomination to the Lord; it is supposed she was obliged to remain unmarried, and apart from her family. Concerning this and some other such passages in the sacred history, about which learned men are divided and in doubt, we need not perplex ourselves; what is necessary to our salvation, thanks be to God, is plain enough. If the reader recollects the promise of Christ concerning the teaching of the Holy Spirit, and places himself under this heavenly Teacher, the Holy Ghost will guide to all truth in every passage, so far as it is needful to be understood.