John Gill Bible Commentary

Or if I bring a sword upon that land,.... The land which had grievously sinned; the same land into which a famine should come, and through which evil beasts should pass; to which, if the Lord should add, as he would, a third judgment, the sword; suffer a foreign enemy to come in among them, and destroy them. So the Targum, "or if those that slay with the sword I should bring upon that land;'' the Chaldean army, as he did; the sword has its commission from God; war is not by chance; the invasion of a foreign enemy is from the Lord; and all the mischiefs and ravages of a tumultuous army are all by divine order: and say, sword, go through the land; not only enter the borders of it, or proceed far in it, but even go through it; which is terrible indeed! but if the Lord bids it go, it must go, and does; it is a servant of his, and punctually obeys his commands; that is, such are those that use it, however profane and wicked they may be in themselves, as generally armies consist of dissolute persons; yet these are under a divine direction, and are obedient to the will of God, though they may know it not. So the Targum, "and I say that they that kill with the sword pass through the land:'' so that I cut off man and beast from it; by the sword; the one being destroyed as an enemy, the other for food.