IV. A declaration of the greatness and sovereignty of that God who espouses Zion's cause and undertakes to reckon with this proud and potent enemy, v. 14. It is the Lord of hosts that has said it, that has sworn it, has sworn it by himself (for he could swear by no greater), that he will fill Babylon with vast and incredible numbers of the enemy's forces, will fill it with men as with caterpillars, that shall overpower it will multitudes, and need only to lift up a shout against it, for that shall be so terrible as to dispirit all the inhabitants and make them an easy prey to this numerous army. But who, and where, is he that can break so powerful a kingdom as Babylon? The prophet gives an account of him from the description he had formerly given of him, and of his sovereignty and victory over all pretenders (Jer. x. 12-16), which was there intended for the conviction of the Babylonian idolaters and the confirmation of God's Israel in the faith and worship of the God of Israel; and it is here repeated to show that God will convince those by his judgments who would not be convinced by his word that he is God over all. Let not any doubt but that he who has determined to destroy Babylon is able to make his words good, for, 1. He is the God that made the world (v. 15), and therefore nothing is too hard for him to do; it is in his name that our help stands, and on him our hope is built. 2. He has the command of all the creatures that he has made (v. 16); his providence is a continued creation. He has wind and rain at his disposal. If he speak the word, there is a multitude of waters in the heavens (and it is a wonder how they hang there), fed by vapours out of the earth, and it is a wonder how they ascend thence. Lightnings and rain seem contraries, as fire and water, and yet they are produced together; and the wind, which seems arbitrary in its motions, and we know not whence it comes, is yet, we are sure, brought out of his treasuries. 3. The idols that oppose the accomplishment of his word are a mere sham and their worshippers brutish people, v. 17, 18. The idols are falsehood, they are vanity, they are the work of errors; when they come to be visited (to be examined and enquired into) they perish, that is, their reputation sinks and they appear to be nothing; and those that make them are like unto them. But between the God of Israel and these gods of the heathen there is no comparison (v. 19): The portion of Jacob is not like them; the God who speaks this and will do it is the former of all things and the Lord of all hosts, and therefore can do what he will; and there is a near relation between him and his people, for he is their portion and they are his; they put a confidence in him as their portion and he is pleased to take a complacency in them and a particular care of them as the lot of his inheritance; and therefore he will do what is best for them. The repetition of these things here, which were said before, intimates both the certainty and the importance of them, and obliges us to take special notice of them; God hath spoken once; yea, twice have we heard this, that power belongs to God, power to destroy the most formidable enemies of his church; and if God thus speak once, yea, twice, we are inexcusable if we do not perceive it and attend to it.