2 Samuel 18:6
And the people went out into the field against Israel. And the battle was in the forest of Ephraim.
Joshua 17:18
But the mountain shall be yours, for it is a forest, and you shall cut it down. And the outer limits of it shall be yours. For you shall drive out the Canaanites, even though they have iron chariots and though they are strong.
Joshua 17:15
And Joshua answered them, If you are a great people, and if mount Ephraim is too narrow for you, get up to the forest and cut down more for yourself there in the land of the Perizzites and of the giants.
Judges 12:4-6
And Jephthah called up all the men of Gilead and fought with Ephraim. And the men of Gilead struck Ephraim, because they said, You Gileadites are fugitives of Ephraim among the Ephraimites and among the Manassites.