Adam Clarke on 2 Kings 14:26

The Lord saw the affliction of Israel - It appears that about this time Israel had been greatly reduced; and great calamities had fallen upon all indiscriminately; even the diseased and captives in the dungeon had the hand of God heavy upon them, and there was no helper; and then God sent Jonah to encourage them, and to assure them of better days. He was the first of the prophets, after Samuel, whose writings are preserved; yet the prophecy delivered on this occasion is not extant; for what is now in the prophecies of Jonah, relates wholly to Nineveh.