29 Then Isaiah said to Hezekiah, "Here is the proof that what I say is true: "This year you will eat only what grows up by itself, and next year you will eat what springs up from that. But in the third year you will plant crops and harvest them; you will tend vineyards and eat their fruit. 30 And you who are left in Judah, who have escaped the ravages of the siege, will put roots down in your own soil and will grow up and flourish. 31 For a remnant of my people will spread out from Jerusalem, a group of survivors from Mount Zion. The passionate commitment of the Lord of Heaven's Armies will make this happen!
Matthew Henry's Commentary on 2 Kings 19:29-31
Commentary on 2 Kings 19:20-34
(Read 2 Kings 19:20-34)
All Sennacherib's motions were under the Divine cognizance. God himself undertakes to defend the city; and that person, that place, cannot but be safe, which he undertakes to protect. The invasion of the Assyrians probably had prevented the land from being sown that year. The next is supposed to have been the sabbatical year, but the Lord engaged that the produce of the land should be sufficient for their support during those two years. As the performance of this promise was to be after the destruction of Sennacherib's army, it was a sign to Hezekiah's faith, assuring him of that present deliverance, as an earnest of the Lord's future care of the kingdom of Judah. This the Lord would perform, not for their righteousness, but his own glory. May our hearts be as good ground, that his word may strike root therein, and bring forth fruit in our lives.