12 There came a writing to him from Elijah the prophet, saying, Thus says Yahweh, the God of David your father, Because you have not walked in the ways of Jehoshaphat your father, nor in the ways of Asa king of Judah, 13 but have walked in the way of the kings of Israel, and have made Judah and the inhabitants of Jerusalem to play the prostitute, like as the house of Ahab did, and also have slain your brothers of your father’s house, who were better than yourself: 14 behold, Yahweh will strike with a great plague your people, and your children, and your wives, and all your substance; 15 and you shall have great sickness by disease of your bowels, until your bowels fall out by reason of the sickness, day by day.
Matthew Henry's Commentary on 2 Chronicles 21:12-15
Commentary on 2 Chronicles 21:12-20
(Read 2 Chronicles 21:12-20)
A warning from God was sent to Jehoram. The Spirit of prophecy might direct Elijah to prepare this writing in the foresight of Jehoram's crimes. He is plainly told that his sin should certainly ruin him. But no marvel that sinners are not frightened from sin, and to repentance, by the threatenings of misery in another world, when the certainty of misery in this world, the sinking of their estates, and the ruin of their health, will not restrain them from vicious courses. See Jehoram here stripped of all his comforts. Thus God plainly showed that the controversy was with him, and his house. He had slain all his brethren to strengthen himself; now, all his sons are slain but one. David's house must not be wholly destroyed, like those of Israel's kings, because a blessing was in it; that of the Messiah. Good men may be afflicted with diseases; but to them they are fatherly chastisements, and by the support of Divine consolations the soul may dwell at ease, even when the body lies in pain. To be sick and poor, sick and solitary, but especially to be sick and in sin, sick and under the curse of God, sick and without grace to bear it, is a most deplorable case. Wickedness and profaneness make men despicable, even in the eyes of those who have but little religion.