11:1-11 Men ought not to be blamed for their parentage, so long as they by their personal merits roll away any reproach. God had forgiven Israel, therefore Jephthah will forgive. He speaks not with confidence of his success, knowing how justly God might suffer the Ammonites to prevail for the further punishment of Israel. Nor does he speak with any confidence at all in himself. If he succeed, it is the Lord delivers them into his hand; he thereby reminds his countrymen to look up to God as the Giver of victory. The same question as here, in fact, is put to those who desire salvation by Christ. If he save you, will ye be willing that he shall rule you? On no other terms will he save you. If he make you happy, shall he make you holy? If he be your helper, shall he be your Head? Jephthah, to obtain a little worldly honour, was willing to expose his life: shall we be discouraged in our Christian warfare by the difficulties we may meet with, when Christ has promised a crown of life to him that overcometh?

3. Jephthah … dwelt in the land of Tob—on the north of Gilead, beyond the frontier of the Hebrew territories (2Sa 10:6, 8).

there were gathered vain men to Jephthah—idle, daring, or desperate.

and went out with him—followed him as a military chief. They led a freebooting life, sustaining themselves by frequent incursions on the Ammonites and other neighboring people, in the style of Robin Hood. The same kind of life is led by many an Arab or Tartar still, who as the leader of a band, acquires fame by his stirring or gallant adventures. It is not deemed dishonorable when the expeditions are directed against those out of his own tribe or nation. Jephthah's mode of life was similar to that of David when driven from the court of Saul.