John Gill's Exposition of the Whole Bible
Judges 11:2
And Gilead's wife bare him sons,.... It seems that, after the birth of Jephthah, Gilead took him a lawful wife, who bore him sons:
and his wife's sons grew up; to the estate of men:
and they thrust out Jephthah: out of his father's house, his father in all likelihood being dead, or he would not have suffered it, and what follows confirms it that he was dead:
and said unto him, thou shalt not inherit in our father's house: as he might not, if the son of an harlot, or of a woman of another tribe, or of a concubine; though as Kimchi, from their Rabbins, observes, the son of such an one might, provided his mother was not an handmaid nor a stranger. And it looks as if this was not rightly done, but that Jephthah was injuriously dealt with by his brethren, of which he complains:
for thou art the son of a strange woman: or of another "woman" e, that was not their father's lawful wife; or of a woman of another tribe, as the Targum; or of another nation, as others, prostitutes being used to go into foreign countries to get a livelihood, and hide the shame of their families; hence a strange woman, and a harlot, signified the same f, see Judges 11:1.
e אשה אחרת "mulieris alterius", Pagninus, Montanus; "exterae", Junius Tremellius, Piscator so Tigurine version. f "Pro uxore hanc peregrinam", Terent. Audria, act 1, scen. 1. l. 118.