19. By breaking down is the earth broken down. He heightens his description of punishments by using various modes of expression. A little afterwards he will point out the cause of this “shaking,” which is, that men by their sins had drawn down on themselves such destruction. He now declares that this evil is incurable. We have formerly said that the Prophet explains the same thing in various ways, and for the purpose of striking and arousing those minds which are naturally very sluggish; for there is in the flesh a carelessness which produces contempt of God, and we have too much experience of it both in ourselves and in others. In order, therefore, that the prophets might arouse those who were careless and asleep in their vices, they adorn their style; not because they cared about being thought eloquent, but that they might make their hearers more attentive, and sting them to the quick. Hence the allusions of which these verses are full; hence the brilliant metaphors in the style; hence the threatenings and terrors announced in various ways; the object of all is, that careless men may be aroused.
Now, this doctrine ought to be limited to the wicked; not because the godly are exempted from those evils, for they are afflicted as well as other men; but because, when the godly betake themselves to God, and rely wholly upon him, they are not shaken in this manner, and remain firm and steadfast against every assault; while wicked men, who despised the judgments of God, and took unbounded liberties in transgression, are terrified and alarmed, and never find rest.