And now, O Lord our God, save us out of his hand: and let all the kingdoms of the earth know, that thou only art the Lord.

And now, Jehovah our God, save us from his hand, and all kingdoms of the earth do know that Thou art Jehovah, Thyself alone.'

But now, O Lord our God, give us salvation from his hand, so that it may be clear to all the kingdoms of the earth that you, and you only, are the Lord.

And now, O Lord our God, save us from his hand. And let all the kingdoms of the earth acknowledge that you alone are Lord."

Et nunc Iehova Dens noster, serra nos e mann ejus; ut cognoscant omnia regna terrae quod tu Iehova es solus.

And now, O Jehovah our God. At the conclusion of his prayer, the pious king now rises above that fear with which he had struggled; for the aids by which he had hitherto fortified himself undoubtedly encouraged him boldly to add this short clause. Although God does not always deliver his people from temporal evils, yet as he had promised that he would be the protector of the city, Hezekiah could firmly believe that all the efforts of that wicked tyrant, which were directed to the destruction of that city, would be fruitless. May know that thou alone art Jehovah. When he pleads it as an argument with God that the deliverance of the city will be an occasion of promoting his glory, we conclude that nothing is more desirable than to make his name glorious in every possible way; and this is even the chief design of our salvation, from which we are not at liberty to depart, if we desire that God should be gracious to us. Hence we conelude that those men are unworthy of his assistance, who, satisfied with their own salvation, disregard or forget the reason why God chooses to preserve them. Not only do they dishonor God by this ingratitude, but they likewise inflict grievous injury on themselves, by separating those things which God had joined; for in saving his people he glorifies his name, which must be, as we have already said, our highest consolation. Besides, Hezekiah does not only desire that the God of Israel shall hold a certain rank, but that all idols shall be abolished, and that he shall reign alone; for at that time many idolaters would have allowed him to be worshipped along with others, but, since he does not admit companions, every deity framed by the hand of man must be destroyed, that He may hold the undivided sovereignty.

That all the kingdoms of the earth may know - Since he has been able to subdue all others; and since Judea alone, the land under the protection of Yahweh, would be saved, all the nations would know that it could not be by the power of an idol. The desire of Hezckiah, therefore, was not primarily that of his own personal safely or the safety of his kingdom. It was that Yahweh might vindicate his great and holy name from reproach, and that the world might know that he was the only true God. A supreme regard to the glory of God influenced this pious monarch in his prayers, and we have here a beautiful model of the object which we should have in view when we come before God. It is not primarily that we may be saved; it is not, as the leading motive, that our friends or that the world may be saved; it is that the name of God may be honored. This motive of prayer is one that is with great frequency presented in the Bible (compare Isaiah 42:8; Isaiah 43:10, Isaiah 43:13, Isaiah 43:25; Deuteronomy 32:39; Psalm 46:10; Psalm 83:18; Nehemiah 9:6; Daniel 9:18-19).
Perhaps there could have been furnished no more striking proof that Yahweh was the true God, than would be by the defeat of Sennacherib. No other nation had been able to resist the Assyrian arms. The great power of that empire was now concentrated in the single army of Sennacherib. He was coming with great confidence of success. He was approaching the city devoted to Yahweh - the city where the temple was, and the city and people that were everywhere understood to be under his protection. The affairs of the world had arrived at a crisis; and the time had come wheu the great Yahweh could strike a blow which would be felt on all nations, and carry the terror of his name, and the report of his power throughout the earth. Perhaps this was one of the main motives of the destruction of that mighty army. God intended that his power should be felt, and that monarchs and people that arrayed themselves against him, and blasphemed him, should have a striking demonstration that be was God, and that none of the devices of his enemies could succeed.

Save us "Save us, we beseech thee" - The supplicating particle, נא na, is supplied here from eighteen MSS., three ancient, of Dr. Kennicott, and ten of De Rossi, and from the other copy; 2-Kings 19:19.
That thou art the Lord, even thou only "That thou Jehovah art the only God" - The word אלהים Elohim, "God, "is lost here in the Hebrew text, but preserved in the other copy; 2-Kings 19:19. The Syriac and Septuagint seem here to have had in their copies אלהים Elohim, instead of יהוה Yehovah.

Now therefore, O LORD our God, save us from his hand, that (n) all the kingdoms of the earth may know that thou [art] the LORD, [even] thou only.
(n) He declares for what cause he prayed, that they might be glorified by it through all the world.

Now therefore, O Lord our God, save us from his hand,.... The hand of the king of Assyria. The Lord had promised that he would and Hezekiah believed he would; but he knew that for this he would be inquired of by him, and he pleads covenant interest, in him, and entreats for salvation upon that account, as well as for the reason following:
that all the kingdoms of the earth may know that thou art the Lord, even thou only; by doing that which other gods could not do; they could not save the nations that worshipped them from the hand of the Assyrians; if therefore the God of Israel saved his people from them, this would be a proof to all the world that he is God and there is none besides him.

The strongest argument to plead before God in prayer, the honor of God (Exodus 32:12-14; Psalm 83:18; Daniel 9:18-19).