Judges 11:1

“Now Jephthah the Gileadite was a mighty man of valour, etc.] Jephthah had his name of Gileadite either from his father, whose name was Gilead, or from the city and country in which he was born, which is most likely, and so was of the same country with the preceding judge; and he was a man of great strength and valour, and which perhaps became known by his successful excursions on parties of the enemies of Israel, the Ammonites, being at the head of a band of men, who lived by the booty they got from them: and he was the son of an harlot; the Targum says, an innkeeper; and, according to Kimchi, she was a concubine, which some reckoned no better than an harlot, but such are not usually called…”

“JEPHTHAH. (Jdg 11:1-3) Jephthah--"opener." son of an harlot--a concubine, or foreigner; implying an inferior sort of marriage prevalent in Eastern countries. Whatever dishonor might attach to his birth, his own high and energetic character rendered him early a person of note. Gilead begat Jephthah--His father seems to have belonged to the tribe of Manasseh (Ch1 7:14, Ch1 7:17).”

“The history of Jephthah appears to be an independent history inserted by the compiler of the Book of Judges. Judges 11:4-5 introduce the Ammonite war without any apparent reference to Judges 10:17-18. A genealogy of Manasseh 1 Chronicles 7:14-17 gives the families which sprang from Gilead, and among them mention is made of an “Aramitess” concubine as the mother of one family. Jephthah, the son of Gilead by a strange woman, fled, after his father’s death, to the land of Tob Judges 11:3, presumably the land of his maternal ancestors (compare Judges 9:1) and an “Aramean” settlement (2 Samuel 10:6, 2 Samuel 10:8; 2 Samuel 1:0 Macc. 5:13). It is difficult to conceive that Jephthah was literally…”

“Gileadite - So called, either from his father Gilead, or from the mountain, or city of Gilead, the place of his birth. Son of a harlot - That is, a bastard. And though such were not ordinarily to enter into the congregation of the Lord, Deu 23:2. Yet God can dispense with his own laws, and hath sometimes done honour to base - born persons, so far, that some of them were admitted to be the progenitors of the Lord Jesus Christ. And Gilead - One of the children of that ancient Gilead, Num 32:1. Judges 11:3”

“Jephthah: Heb 11:32, called Jephthae a mighty: Jdg 6:12; Kg2 5:1 an harlot: Heb. a woman an harlot: Probably zonah should be rendered as in Jos 2:1, a hostess, or inn-keeper, so Targum of Jonathan, wehoo bar ittetha pundekeetha, "and he was the son of a woman, a tavern-keeper." She was very probably a Canaanite, as she is called, Jdg 11:2, a strange woman, ishah achereth, "a woman of another race;" and on this account his brethren drove him from the family, as not having a full right to the inheritance. Judges 11:2”

“Election of Jephthah as Prince and Judge of Israel. - Jdg 11:1-3. The account begins with his descent and early mode of life. "Jephthah (lxx Ἰεφθά) the Gileadite was a brave hero" (see Jdg 6:12; Jos 1:14, etc.); but he was the son of a harlot, and was begotten by Gilead, in addition to other sons who were born of his wife. Gilead is not the name of the country, as Bertheau supposes, so that the land is mythically personified as the forefather of Jephthah. Nor is it the name of the son of Machir and grandson of Manasseh ( Num 26:29), so that the celebrated ancestor of the Gileadites is mentioned here instead of the unknown father of Jephthah. It is really the proper name of the father…”