JDG 12:4

4 Then Jephthah summoned the men of [the] Gilead [region] to fight [against the men of the tribe of] Ephraim. The men of the tribe of Ephraim said, “You men from [the ] Gilead [region] are men who deserted us. Long ago you left us and moved to the area between our tribe and the tribe of Manasseh.” [Because of their saying that], the men of [the] Gilead [region] attacked the men of the tribe of Ephraim.