And the children of Joseph said, The hill is not enough for us: and all the Canaanites that dwell in the land of the valley have chariots of iron, both they who are of Bethshean and her towns, and they who are of the valley of Jezreel. The hill is not enough for us - The mountain of Gilboa being that which had fallen to them by lot.
Chariots of iron - We cannot possess the plain country, because that is occupied by the Canaanites; and we cannot conquer them, because they have chariots of iron, that is, very strong chariots, and armed with scythes, as is generally supposed.