II. That the instruments of this destruction should be very resolute and formidable. They have their commission from God; he summons them into this service (v. 14): I have heard a rumour, or report, from the Lord, heard it by the prophecy of Obadiah, heard it by a whisper to myself, that an ambassador, or herald, or messenger, is sent to the Gentiles, who are to lay Edom waste, saying, Gather you together, muster all the forces you can, and come against her; for (v. 20) this is the counsel that he hath taken against Edom. The matter is settled, the decree has gone forth, and there is no resisting it. God has determined that Edom shall be laid waste, and then he that is to be employed in wasting it shall come swiftly and strongly. Nebuchadnezzar is he or whom it is here foretold, 1. That he shall come up like a lion, with fierceness and fury, like a lion enraged by the swelling of Jordan overflowing his banks, which forces him out of his covert by the water-side into the higher grounds, v. 19. He shall come roaring, come to devour all that come in his way. He shall come against the habitation of the strong, the forts and castles; and I will cause him to come suddenly into the land (so the next words might well be read), so as to find them unprovided with necessaries for a defence; for I will look out a chosen man to appoint over her, to do this execution, a man fit for the purpose, one chosen out of the people; for when God has work to do he will find out the fittest instruments to be employed in doing it: "Who is like me for choosing the instruments, and spiriting them for the work? And who will appoint me the time? Who will challenge me, and fix a time and place to meet me? Who will join issue with me in battle? And, when I send a lion into the flock, who is that shepherd that can, or dare, stand before me, or against me, to oppose that lion, and think to rescue any of the flock?" Note, When God has work to do of any kind he will soon find those that are able to engage in it, and all the world cannot find those that are able to engage against it. Nay, if God will have Edom destroyed, and their peopled dislodged, there needs not a lion, a fierce lion to do it: Even the least of the flock shall draw them out (v. 20); the meanest servant in Nebuchadnezzar's retinue, the weakest of all that follow his camp, shall draw them out for the slaughter, shall force them to flee, or to surrender, and make their habitations desolate with them. God can bring to pass the greatest works by instruments least likely. When the Chaldean army comes against the Edomites all hands shall be employed and the poorest soldier in it shall have a pluck at them. 2. Nebuchadnezzar shall come, not only like a lion, the king of beasts, but like an eagle, the king of birds (v. 22): He shall fly as the eagle upon his prey, so swiftly, so strongly, shall clap his wings upon Bozrah, to secure it for himself (as before, ch. xlviii. 40), and immediately the hearts of the mighty men shall fail them, for they shall see he is an enemy that it is in vain to struggle with.