Joshua 17:12

17:12 But the men of Manasseh were unable to conquer these cities; the Canaanites managed to remain in those areas.

Joshua 17:18

17:18 The whole hill country will be yours; though it is a forest, you can clear it and it will be entirely yours. You can conquer the Canaanites, though they have chariots with iron-rimmed wheels and are strong.”