I will lay waste the mountains and hills and dry up all their vegetation. I will turn the rivers into dry land and drain the marshes.
15. I will reduce mountains and hills to a wilderness. The Prophet means that all the defences and military forces on which the wicked plume themselves shall not prevent God from setting his people at liberty. It was necessary that this should be added to the former statements; for when we see enemies exceedingly powerful, and almost invincible, we tremble, and do not look for...
It comes all to one whether we make these verses (as some do) the song itself that is to be sung by the Gentile world or a prophecy of what God will do to make way for the singing of that song, that evangelical new song. I. He will appear in his power and glory more than ever.
Commenting on Isaiah 42:13-17
I will make waste mountains and hills,.... Kingdoms, greater and lesser; kings and governors, as Jarchi interprets it; and so Kimchi understands it of the kings of the nations; by them are meant the emperors of Rome, and their governors under them, that set themselves against Christ and his Gospel, but were overcome by him; these mountains and hills became a plain before him: "every...