Matthew Henry on Jeremiah 49:28-33

Nebuchadnezzar would make desolation among the people of Kedar, who dwelt in the deserts of Arabia. He who conquered many strong cities, will not leave those unconquered that dwell in tents. He will do this to gratify his own covetousness and ambition; but God orders it for correcting an unthankful people, and for warning a careless world to expect trouble when they seem most safe. They shall flee, get far off, and dwell deep in the deserts; they shall be dispersed. But privacy and obscurity are not always protection and security.