Joshua 17:15 in the King James Version
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.
Context
14 The children of Joseph spoke to Joshua, saying, “Why have you given me just one lot and one part for an inheritance, since we are a numerous people, because the LORD has blessed us so far?”
15 Joshua said to them, “If you are a numerous 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.”
16 The children of Joseph said, “The hill country is not enough for us. All the Canaanites who dwell in the land of the valley have chariots of iron, both those who are in Beth Shean and its towns, and those who are in the valley of Jezreel.”