I. Assurance given of the destruction of the Assyrians (v. 25): I will break the Assyrian in my land. Sennacherib brought a very formidable army into the land of Judah, but there God broke it, broke all his regiments by the sword of a destroying angel. Note, Those who wrongfully invade God's land shall find that it is at their peril: and those who with unhallowed feet trample upon his holy mountains shall themselves there be trodden under foot. God undertakes to do this himself, his people having no might against the great company that came against them: "I will break the Assyrian; let me alone to do it who have angels, hosts of angels, at command." Now the breaking of the power of the Assyrian would be the breaking of the yoke from off the neck of God's people: His burden shall depart from off their shoulders, the burden of quartering that vast army and paying contribution; therefore the Assyrian must be broken, that Judah and Jerusalem may be eased. Let those that make themselves a yoke and a burden to God's people see what they are to expect. Now, 1. This prophecy is here ratified and confirmed by an oath (v. 24): The Lord of hosts hath sworn, that he might show the immutability of his counsel, and that his people may have strong consolation, Heb. vi. 17, 18. What is here said of this particular intention is true of all God's purposes: As I have thought, so shall it come to pass; for he is in one mind, and who can turn him? Nor is he ever put upon new counsels, or obliged to take new measures, as men often are when things occur which they did not foresee. Let those who are the called according to God's purpose comfort themselves with this, that, as God has purposed, so shall it stand, and on that their stability depends. 2. The breaking of the Assyrian power is made a specimen of what God would do with all the powers of the nations that were engaged against him and his church (v. 26): This is the purpose that is purposed upon the whole earth (the whole world, so the LXX.), all the inhabitants of the earth (so the Chaldee), not only upon the Assyrian empire (which was then reckoned to be in a manner all the world, as afterwards the Roman empire was, Luke ii. 1, and with it many nations fell that had dependence upon it), but upon all those states and potentates that should at any time attack his land, his mountains. The fate of the Assyrian shall be theirs; they shall soon find that they meddle to their own hurt. Jerusalem, as it was to the Assyrians, will be to all people a burdensome stone; all that burden themselves with it shall infallibly be cut to pieces by it, Zech. xii. 3, 6. The same hand of power and justice that is now to be stretched out against the Assyrian for invading the people of God shall be stretched out upon all the nations that do likewise. It is still true, and will ever be so, Cursed is he that curses God's Israel, Num. xxiv. 9. God will be an enemy to his people's enemies, Exod. xxiii. 22. 3. All the powers on earth are defied to change God's counsel (v. 27): "The Lord of hosts has purposed to break the Assyrian's yoke, and every rod of the wicked laid upon the lot of the righteous; and who shall disannul this purpose? Who can persuade him to recall it, or find out a plea to evade it? His hand is stretched out to execute this purpose; and who has power enough to turn it back or to stay the course of his judgments?"