Judges 11

12-28. Jephthah sent messengers unto the king of the children of Ammon--This first act in his judicial capacity reflects the highest credit on his character for prudence and moderation, justice and humanity. The bravest officers have always been averse to war; so Jephthah, whose courage was indisputable, resolved not only to make it clearly appear that hostilities were forced upon him, but to try measures for avoiding, if possible, an appeal to arms: and in pursuing such a course he was acting as became a leader in Israel ( Deuteronomy 20:10-18 ).

13. the king of Ammon . . ., Because Israel took away my of right advanced by the Ammonite monarch to the lands which the Israelites were occupying. Jephthah's reply was clear, decisive, and unanswerable;--first, those lands were not in the possession of the Ammonites when his countrymen got them, and that they had been acquired by right of conquest from the Amorites [ Judges 11:21 ]; secondly, the Israelites had now, by a lapse of three hundred years of undisputed possession, established a prescriptive right to the occupation [ Judges 11:22 Judges 11:23 ]; and thirdly, having received a grant of them from the Lord, his people were entitled to maintain their right on the same principle that guided the Ammonites in receiving, from their god Chemosh, the territory they now occupied [ Judges 11:24 ]. This diplomatic statement, so admirable for the clearness and force of its arguments, concluded with a solemn appeal to God to maintain, by the issue of events, the cause of right and justice [ Judges 11:27 ].

28. Howbeit the king of the children of Ammon hearkened not unto the words of Jephthah--His remonstrances to the aggressor were disregarded, and war being inevitable, preparations were made for a determined resistance.

Judges 11:29-31 . HIS VOW.

29, 30. Then the Spirit of the Lord came upon Jephthah--The calm wisdom, sagacious forethought, and indomitable energy which he was enabled to display, were a pledge to himself and a convincing evidence to his countrymen, that he was qualified by higher resources than his own for the momentous duties of his office.
he passed over Gilead, and Manasseh--the provinces most exposed and in danger, for the purpose of levying troops, and exciting by his presence a widespread interest in the national cause. Returning to the camp at Mizpeh, he then began his march against the enemy. There he made his celebrated vow, in accordance with an ancient custom for generals at the outbreak of a war, or on the eve of a battle, to promise the god of their worship a costly oblation, or dedication of some valuable booty, in the event of victory. Vows were in common practice also among the Israelites. They were encouraged by the divine approval as emanating from a spirit of piety and gratitude; and rules were laid down in the law for regulating the performance. But it is difficult to bring Jephthah's vow within the legitimate range

31. whatsoever cometh forth of the doors of my house to meet me--This evidently points not to an animal, for that might have been a dog; which, being unclean, was unfit to be offered; but to a person, and it looks extremely as if he, from the first, contemplated a human sacrifice. Bred up as he had been, beyond the Jordan, where the Israelitish tribes, far from the tabernacle, were looser in their religious sentiments, and living latterly on the borders of a heathen country where such sacrifices were common, it is not improbable that he may have been so ignorant as to imagine that a similar immolation would be acceptable to God. His mind, engrossed with the prospect of a contest, on the issue of which the fate of his country depended, might, through the influence of superstition, consider the dedication of the object dearest to him the most likely to ensure success.
shall surely be the Lord's; and [or] I will offer it up for a burnt offering--The adoption of the latter particle, which many interpreters suggest, introduces the important alternative, that if it were a person, the dedication would be made to the service of the sanctuary; if a proper animal or thing, it would be offered on the altar.

Judges 11:32 Judges 11:33 . HE OVERCOMES THE AMMONITES.

32. Jephthah passed over unto the children of Ammon . . . and the Lord delivered them into his hands--He met and engaged them at Aroer, a town in the tribe of Gad, upon the Arnon. A decisive victory crowned the arms of Israel, and the pursuit was continued to Abel (plain of the vineyards), from south to north, over an extent of about sixty miles.

34-40. Jephthah came to Mizpeh unto his house, and, behold, his daughter came out to meet him with timbrels and with dances--The return of the victors was hailed, as usual, by the joyous acclaim of a female band ( 1 Samuel 18:6 ), the leader of whom was Jephthah's daughter. The vow was full in his mind, and it is evident that it had not been communicated to anyone, otherwise precautions would doubtless have been taken to place another object at his door. The shriek, and other accompaniments of irrepressible grief, seem to indicate that her life was to be forfeited as a sacrifice; the nature of the sacrifice (which was abhorrent to the character of God) and distance from the tabernacle does not suffice to overturn this view, which the language and whole strain of the narrative plainly support; and although the lapse of two months might be supposed to have afforded time for reflection, and a better sense of his duty, there is but too much reason to conclude that he was impelled to the fulfilment by the dictates of a pious but unenlightened conscience.