12 And a letter came to him from Elijah the prophet, saying, Thus says the Lord God of your father David: Because you have not walked in the ways of Jehoshaphat your father, or 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 harlot like the harlotry of the house of Ahab, and also have killed your brothers, those of your father's household, who were better than yourself, 14 behold, the Lord will strike your people with a serious affliction--your children, your wives, and all your possessions; 15 and you will become very sick with a disease of your intestines, until your intestines come 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.