11:39 Did with her - Jephthah's daughter was not sacrificed, but only devoted to perpetual virginity. This appears, From ver.37,38, where we read, that she bewailed not her death, which had been the chief cause of lamentation, if that had been vowed, but her virginity: From this ver.39, where, after he had said, that he did with her according to his vow; he adds, by way of declaration of the matter of that vow, and she knew no man. It is probably conceived, that the Greeks, who used to steal sacred histories, and turn them into fables, had from this history their relation of Iphigenia (which may be put for Jephtigenia) sacrificed by her father Agamemnon, which is described by many of the same circumstances wherewith this is accompanied.
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.
