Isaiah 38:9
9The writing of Hezekiah king of Judah, when he had been sick, and had recovered of his sickness:
Hezekiah’s psalm (vv. 10–20) is a written record of his illness and recovery, turning a private crisis into public thanksgiving.
Calvin: the writing of Hezekiah. Though sacred history gives no account of this writing, yet it deserves to be recorded; Hezekiah was unwilling to pass in silence, or to bury in forgetfulness, so remarkable a blessing; this song may be regarded as a public record. This is a very melancholy song; for it contains complaints rather than prayers; he was oppressed by so great perplexity that he was weary with groaning, and sunk in lamentations.
Key contrast Both keep the writing as that psalm of the recovered king. Wesley names it his song of praise to God, v. 9-20, the writing of Hezekiah when he had been sick and was recovered. Calvin calls it a very melancholy song, for it contains complaints rather than prayers; Hezekiah was unwilling to bury so remarkable a blessing in forgetfulness, and the song may be regarded as a public record, yet he was weary with groaning and sunk in lamentations.