Not enough. Literally, “not found,” that is, “does not exist,” or, “is not acquired.” The mountain, these tribes claimed, was not for them. It would be too difficult to clear and prepare for agriculture. They wanted the valley, but that was controlled by the Canaanites who possessed powerful weapons.
Chariots of iron. Not chariots with frames of iron, but chariots with iron plating. Some have denied the existence of objects of iron at this time; however, iron objects found in King Tutankhamen’s tomb come from the same century and prove the existence and use of iron at that time (see also on Gen. 4:22). These weapons were formidable instruments of war, but the children of Joseph should have remembered that their God was greater than even the “chariots of iron.”