2 Samuel 18:6
"So the people went out into the field against Israel: and the battle was in the wood of Ephraim;"
Cross References (ranked by relevance)
Joshua 17:18
But the mountain shall be thine; for it is a wood, and thou shalt cut it down: and the outgoings of it shall be thine: for thou shalt drive out the Canaanites, though they have iron chariots, and though they be strong.
Joshua 17:15
And Joshua answered them, If thou be a great people, then get thee up to the wood country, and cut down for thyself there in the land of the Perizzites and of the giants, if mount Ephraim be too narrow for thee.