The king of Judah is spoken to, as sitting upon the throne of David, the man after God's own heart. Let him follow his example, that he may have the benefit of the promises made to him. The way to preserve a government, is to do the duty of it.
But sin will be the ruin of the houses of princes, as well as of meaner men. And who can contend with destroyers of God's preparing? God destroys neither persons, cities, nor nations, except for sin; even in this world he often makes it plain for what crimes he sends punishment; and it will be clear at the day of judgement.