Joshua 17:12-18

12But the descendants of Manasseh were unable to occupy these towns because the Canaanites were determined to stay in that region.

13Later, however, when the Israelites became strong enough, they forced the Canaanites to work as slaves. But they did not drive them out of the land.

14The descendants of Joseph came to Joshua and asked, “Why have you given us only one portion of land as our homeland when the Lord has blessed us with so many people?”

15Joshua replied, “If there are so many of you, and if the hill country of Ephraim is not large enough for you, clear out land for yourselves in the forest where the Perizzites and Rephaites live.”

16The descendants of Joseph responded, “It’s true that the hill country is not large enough for us. But all the Canaanites in the lowlands have iron chariots, both those in Beth-shan and its surrounding settlements and those in the valley of Jezreel. They are too strong for us.”

17Then Joshua said to the tribes of Ephraim and Manasseh, the descendants of Joseph, “Since you are so large and strong, you will be given more than one portion.

18The forests of the hill country will be yours as well. Clear as much of the land as you wish, and take possession of its farthest corners. And you will drive out the Canaanites from the valleys, too, even though they are strong and have iron chariots.”