The men of Ephraim were gathered together, and passed northward; and they said to Jephthah, Why did you pass over to fight against the children of Ammon, and didn't call us to go with you? we will burn your house on you with fire.
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).