2 Chronicles 21:12-15

One day he got a letter from Elijah the prophet. It read, “From GOD, the God of your ancestor David—a message: Because you have not kept to the ways of Jehoshaphat your father and Asa your grandfather, kings of Judah, but have taken up with the ways of the kings of Israel in the north, leading Judah and Jerusalem away from God, going step by step down the apostate path of Ahab and his crew—why, you even killed your own brothers, all of them better men than you!—GOD is going to afflict your people, your wives, your sons, and everything you have with a terrible plague. And you are going to come down with a terrible disease of the colon, painful and humiliating.”