2 Samuel 18:6
So the people went out into the field against Israel: and the battle was in the forest of Ephraim.
Joshua 17:18
but the hill country shall be yours. Although it is a forest, you shall cut it down, and it's farthest extent shall be yours; for you shall drive out the Canaanites, though they have chariots of iron, and though they are strong."
Joshua 17:15
Joshua said to them, "If you are a great people, go up to the forest, and clear land for yourself there in the land of the Perizzites and of the Rephaim; since the hill country of Ephraim is too narrow for you."
Judges 12:4-6
Then Jephthah gathered together all the men of Gilead, and fought with Ephraim; and the men of Gilead struck Ephraim, because they said, "You are fugitives of Ephraim, you Gileadites, in the midst of Ephraim, [and] in the midst of Manasseh."