When I saw that you didn't save me, I put my life in my hand, and passed over against the children of Ammon, and Yahweh delivered them into my hand: why then are you come up to me this day, to fight against me?
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).