Unknown Author
Judges 12:2BSB·author unknown

But Jephthah replied, “My people and I had a serious conflict with the Ammonites, and when I called, you did not save me out of their hands.

Matthew Henry Presbyterian @wholebiblehenry

Here Is, I. The unreasonable displeasure of the men of Ephraim against Jephthah, because he had not called them in to his assistance against the Ammonites, that they might share in the triumphs and spoils, Jdg 12:1. Pride was at the bottom of the quarrel. Only by that comes contention. Proud men think all the honours lost that go beside themselves, and then who can stand before envy?

Commenting on Judges 12:1-7

John Gill Reformed Baptist @doctorgill

And Jephthah said unto them, I and my people were at a great strife with the children of Ammon,.... As to the cause of the war, or the reason of his going over to fight the children of Ammon, it was a strife or contention between the Gileadites and them, concerning their country; which the children of Ammon claimed as theirs, and the Gileadites insisted...

Jamieson-Fausset-Brown Reformed @jfbcommentary

when I called you, ye delivered me not out of their hands--The straightforward answer of Jephthah shows that their charge was false; their complaint of not being treated as confederates and allies entirely without foundation; and their boast of a ready contribution of their services came with an ill grace from people who had purposely delayed appearing till the crisis was past.