Melachim Bais 19:5-20, 32-37

So the avadim of HaMelech Chizkiyah came to Yeshayah. And Yeshayah said unto them, Thus shall ye say unto adoneichem, Thus saith HASHEM, Be not afraid of the words which thou hast heard, wherewith the na'arei Melech Ashur have made gidduf against Me. Hineni, I will put a ruach in him, and he shall hear a shemuah (report), and shall return to his own land; and I will cause him to fall by the cherev in his own land. So Rav Shakeh left [Yerushalayim], and found Melech Ashur warring against Livnah; for he had heard that he was departed from Lakhish. And he heard concerning Tirhakah Melech Kush, Hinei, he is come forth to make war with thee; and when he heard it, he sent malachim again unto Chizkiyah, saying, Thus shall ye speak to Chizkiyah Melech Yehudah, saying, Let not Eloheicha, in Whom thou trustest, deceive thee, saying, Yerushalayim shall not be delivered into the yad Melech Ashur. Hinei, thou hast heard what the melachim of Ashur have done to all lands, by destroying them utterly; and shalt thou be saved? Have the elohei HaGoyim delivered them which my avot have destroyed; as Gozan, and Charan, and Retzeph, and the Bnei Eden which were in Telassar? Where is Melech Chamat, and Melech Arpad, and the Melech of the Ir of Sepharvayim, Hena, and Ivah? And Chizkiyah received the sefarim (letters) from the yad hamalachim, and read it; and Chizkiyah went up into the Beis HASHEM, and spread it before HASHEM. And Chizkiyah davened before HASHEM, saying, HASHEM Elohei Yisroel, that dwellest between the keruvim, Thou art HaElohim, even Thou alone, of kol mamlechot ha'aretz; Thou hast made Shomayim and HaAretz. Incline Thine ear, HASHEM, and hear; open, HASHEM, Thine eyes, and see; and hear the words of Sancheriv, which he sent to insult the Elohim Chai (Living G-d). Truly, HASHEM, the melachim of Ashur have laid waste the Goyim and their lands, And have cast eloheihem into the eish; for they were no elohim, but the ma'aseh yedei adam, etz and even (stone); therefore they have destroyed them. Now therefore, HASHEM Eloheinu, save us from his yad, that kol mamlechot ha'aretz may know that Thou art HASHEM, even Thou only. Then Yeshayah Ben Amotz sent unto Chizkiyah, saying, Thus saith HASHEM Elohei Yisroel, Whereas thou hast davened to Me against Sancheriv Melech Ashur, I have heard.

Therefore thus saith HASHEM concerning Melech Ashur, He shall not come into this city, nor shoot khetz (an arrow) there, nor come before it with mogen, nor cast a siege ramp against it. By the derech that he came, by the same shall he return, and shall not come into this city, saith HASHEM. For I will defend this city, to save it, for Mine Own sake, and for the sake of Dovid Avdi. And it came to pass that night, that the Malach HASHEM went forth, and struck down in the Machaneh Ashur a hundred and fourscore and five elef; and when they arose early in the boker, hinei, they were all pegarim mesim (dead corpses). So Sancheriv Melech Ashur departed, and went and returned, and dwelt in Nineveh. And it came to pass, as he was worshiping in the Bais Nisroch elohav, that Adramelech and Saretzer his banim cut him down with the cherev; and they escaped into Eretz Ararat. And Esar-Chaddon bno reigned in his place.