Joshua 17:16

The hill is not enough for us That is, if we could get possession of the woody mountain, cut down all its trees, and destroy all its inhabitants, it would not be sufficient for us. But the Hebrew is, The hill will not be found; that is, obtained by us. Those fierce and strong people the Perizzites and the giants will easily defend themselves, and frustrate our attempts, having the advantage of the woods and mountains. The Canaanites that dwell, &c. They seem to mean that there was another impediment in their way, that before they could come at the mountain to attack it, they would have to encounter those who lived in the valley below it, who were too strong for them. Or that, if Joshua should command them, in case the hill either could not be conquered, or would not be sufficient for them, to go down and take more land out of the pleasant and fruitful valleys, that they would meet with no less difficulty there than in the mountains. Have chariots of iron. Not all made of iron, but armed with iron, and that not only for defence, but for offence also; having a kind of scythes, of two cubits long, fastened to long axle-trees on both wheels, which being driven swiftly through a body of men, made great slaughter, mowing them down like grass or corn.