Hezekiah also had said, “What is the sign that I shall go up to the house of the LORD?”
22. Now, Hezekiah had said. Some explain this verse as if this also had been a sign given to Hezekiah, and therefore, view it as connected with the preceding verse, and look upon it as an exclamation of astonishment. But it is more probable that in this passage the order has been reversed, as frequently takes place with Hebrew writers, and that what was spoken last is related first.
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
house of the Lord--Hence he makes the praises to be sung there prominent in his song (Isa 38:20; Psa 116:12-14, Psa 116:17-19). Next: Isaiah Chapter 39