Jephthah said to them, I and my people were at great strife with the children of Ammon; and when I called you, you didn't save me out of their hand.
The Ephraimites were the Gileadites’ neighbors to the west. They resented the fact that Jephthah had not requested their assistance in the war with the Ammonites. We noted earlier that the Ephraimites considered themselves superior to their brethren in some respects (cf. Judges 8:1). They foolishly threatened to punish Jephthah for this affront (Judges 12:1).