Verse 19. - New therefore, O Lord our God. Hezekiah draws the strongest possible contrast between Jehovah and the idols. Sennacherib had placed them upon a par (2 Kings 18:33-35; 2 Kings 19:10-13). Hezekiah insists that the idols are "no gods," are "nothing" - at any rate are mere blocks of wood and stone, shaped by human hands. But Jehovah is "the God of all the kingdoms of the earth" (ver. 15), the Maker of heaven and earth (ver. 15), the one and only God (ver. 19) - answering to his name, self-existing, all-sufficient, the groundwork of all other existence. And he is "our God" - the special God of Israel, bound by covenant to protect there against all enemies. I beseech thee, save thou us out of his hand; i.e. "do that which this proud blasphemer thinks that thou canst not do" (2 Kings 18:35); show him that thou art far mightier than he supposes, wholly unlike those "no-gods," over whom he has hitherto triumphed - a "very present Help in trouble" - potent to save. That all the kingdoms of the earth may know that thou art the Lord God. The glory of God is the end of creation; and God's true saints always bear the fact in mind, and desire nothing so much as that his glory should be shown forth everywhere and always. Moses, in his prayers for rebellious Israel in the wilderness, constantly urges upon God that it will not be for his glory to destroy or desert them (Exodus 32:12; Numbers 14:13-16; Deuteronomy 9:26-29). David, in his great strait, asks the destruction of his enemies, "that men may know that thou, whose name alone is Jehovah, art the Most High over all the earth" (Psalm 83:18); and again (Psalm 59:13), "Consume them in wrath, consume them, that they may not be; and let them know that God ruleth in Jacob unto the ends of the earth." Hezekiah prays for a signal vengeance on Sennacherib, not for his own sake, not even for his people's sake, so much as for the vindication of God's honor among the nations of the earth - that it may be known far and wide that Jehovah is a God who can help, the real Ruler of the world, against whom earthly kings and earthly might avail nothing. Even thou only. It would not satisfy Hezekiah that Jehovah should be acknowledged as a mighty god, one of many. He asks for such a demonstration as shall convince men that he is unique, that he stands alone, that he is the only mighty God in all the earth.

19:8-19 Prayer is the never-failing resource of the tempted Christian, whether struggling with outward difficulties or inward foes. At the mercy-seat of his almighty Friend he opens his heart, spreads his case, like Hezekiah, and makes his appeal. When he can discern that the glory of God is engaged on his side, faith gains the victory, and he rejoices that he shall never be moved. The best pleas in prayer are taken from God's honour.And it came to pass, when King Hezekiah heard it,.... The report of Rabshakeh's speech, recorded in the preceding chapter:

that he rent his clothes, and covered himself with sackcloth; rent his clothes because of the blasphemy in the speech; and he put on sackcloth, in token of mourning, for the calamities he feared were coming on him and his people: and he went into the house of the Lord; the temple, to pray unto him. The message he sent to Isaiah, with his answer, and the threatening letter of the king of Assyria, Hezekiah's prayer upon it, and the encouraging answer he had from the Lord, with the account of the destruction of the Assyrian army, and the death of Sennacherib, are the same "verbatim" as in Isaiah 37:1 throughout; and therefore the reader is referred thither for the exposition of them; only would add what Rauwolff (t) observes, that still to this day (1575) there are two great holes to be seen, wherein they flung the dead bodies (of the Assyrian army), one whereof is close by the road towards Bethlehem, the other towards the right hand against old Bethel.

(t) Travels, par. 3. ch. 22. p. 317.