For Isaiah had said, Let them take a lump of figs, and lay it for a plaister upon the boil, and he shall recover.
21. And Isaiah said Isaiah now relates what was the remedy which he prescribed to Hezekiah. Some think that it was not a remedy, becausefigs are dangerous and hurtful to boils; but that the pious king was warned and clearly taught by this sign that the cure proceeded from nothing else than from the favor of God alone.
We have here Hezekiah's thanksgiving-song, which he penned, by divine direction, after his recovery. He might have taken some of the psalms of his father David, and made use of them for his purpose; he might have found many very pertinent ones. He appointed the Levites to praise the Lord with the words of David, Ch2 29:30.
Commenting on Isaiah 38:9-22
Hezekiah also had said,.... Unto Isaiah, as in Kg2 20:8, what is the sign that I shall go up to the house of the Lord? both of his health, and of his going up to the temple with thanksgiving for it; though the former is not here mentioned, as it is elsewhere; partly because it is supposed in the latter, for without that he could...