Therefore their inhabitants, devoid of power, are dismayed and ashamed. They are like plants in the field, tender green shoots, grass on the rooftops, scorched before it is grown.
We have here the gracious copious answer which God gave to Hezekiah's prayer. The message which he sent him by the same hand (Kg2 19:6, Kg2 19:7), one would think, was an answer sufficient to his prayer; but, that he might have strong consolation, he was encouraged by two immutable things, in which it was impossible for God to lie, Heb 6:18.
Commenting on 2 Kings 19:20-34
HEZEKIAH'S PRAYER. (2Ki. 19:14-34) Hezekiah received the letter . . . and went up into the house of the Lord--Hezekiah, after reading it, hastened into the temple, spread it in the childlike confidence of faith before the Lord, as containing taunts deeply affecting the divine honor, and implored deliverance from this proud defier of God and man.
Commenting on 2 Kings 19:14-34
Therefore their inhabitants were of small power, they were dismayed and confounded; they were [as] the grass of the field, and [as] the green herb, [as] the grass on the housetops, and [as corn] blasted before it be grown up. (r) Thus he describes the wicked, who flourish for a time, and later fade and decay like flowers.