Isaiah Answers with a Taunt, Sign, and Deliverance

Zion laughs at the invader, and the LORD recites the king's own routes back to him

Then Isaiah the son of Amoz sent unto Hezekiah, saying, Thus saith the LORD God of Israel, Whereas thou hast prayed to me against Sennacherib king of Assyria: this is the word which the LORD hath spoken concerning him; The virgin, the daughter of Zion, hath despised thee, and laughed thee to scorn; the daughter of Jerusalem hath shaken her head at thee. Whom hast thou reproached and blasphemed? and against whom hast thou exalted thy voice, and lifted up thine eyes on high? even against the Holy One of Israel.

By thy servants hast thou reproached the Lord, and hast said, By the multitude of my chariots am I come up to the height of the mountains, to the sides of Lebanon; and I will cut down the tall cedars thereof, and the choice fir trees thereof: and I will enter into the height of his border, and the forest of his Carmel. I have digged, and drunk water; and with the sole of my feet have I dried up all the rivers of the besieged places. Hast thou not heard long ago, how I have done it; and of ancient times, that I have formed it? now have I brought it to pass, that thou shouldest be to lay waste defenced cities into ruinous heaps. Imperial climbing of Lebanon is quoted and then rewritten as a job assigned, not owned. The taunt is the LORD's answer to blasphemy. It does not authorize triumphal nationalism.

A remnant takes root, a sign of eating volunteer growth is given, and the camp is struck

But I know thy abode, and thy going out, and thy coming in, and thy rage against me. Because thy rage against me, and thy tumult, is come up into mine ears, therefore will I put my hook in thy nose, and my bridle in thy lips, and I will turn thee back by the way by which thou camest. And this shall be a sign unto thee, Ye shall eat this year such as groweth of itself; and the second year that which springeth of the same: and in the third year sow ye, and reap, and plant vineyards, and eat the fruit thereof.

And the remnant that is escaped of the house of Judah shall again take root downward, and bear fruit upward: for out of Jerusalem shall go forth a remnant, and they that escape out of mount Zion: the zeal of the LORD of hosts shall do this. Therefore thus saith the LORD concerning the king of Assyria, He shall not come into this city, nor shoot an arrow there, nor come before it with shields, nor cast a bank against it. By the way that he came, by the same shall he return, and shall not come into this city, saith the LORD. For I will defend this city to save it for mine own sake, and for my servant David's sake.

Then the angel of the LORD went forth, and smote in the camp of the Assyrians a hundred and fourscore and five thousand: and when they arose early in the morning, behold, they were all dead corpses. The sign is two years of volunteer eating then sowing again. Root downward, fruit upward is the remnant's life. Defense is for the LORD's sake and David's. The report of mass death is deliverance in this narrative, not a pattern to imitate, not a claim that every defended city has this promise, and not a warrant for human mass killing.