And the children of Joseph said, the hill is not enough for us,.... Meaning either Mount Ephraim, and all included in it; or it may be rather the wood country on the hills and mountains they were bid to go up to; signifying, that if they could gain that out of the hands of the Perizzites and giants, and clear it of the wood, and make it habitable, even that would not be sufficient for them; or that hill and mountain cannot be "found by us" (r) or obtained and possessed by us; we are not able to get it into our hands; there being a valley between us and that: and all the Canaanites that dwell in the land of the valley have chariots of iron; not chariots made of iron, but chariots with iron scythes fastened to the sides, or axle trees of them, which when driven with great force and fury, would cut down the infantry in battle, as grass is cut down with scythes, see Jdg 4:2, both they who are of Bethshean and her towns, and they who are of the valley of Jezreel; both which belonged to the tribe of Manasseh, or were on the borders of it, though as yet they had not got possession, see Jos 17:11; and this circumstance seems to favour the notion, that tribe of Manasseh were at least chiefly concerned in this address. (r) "non invenietur nobis", Montanus; "non possumus montem istum assequi", Tigurine version; "non obtinebitur a nobis", Masius.