John Wesley on 2 Kings 9:22

Whoredoms, &c. - This may be understood, either literally; spiritual whoredom, which is idolatry, being often punished with corporal: and witchcraft was often practised by idolaters: or spiritually, of her idolatry, which is often called whoredom, because it is a departing from God, to whom we are tied by many obligations; and witchcraft, because it doth so powerfully bewitch men's minds; and because it is a manifest entering into covenant with the devil. He mentions not Joram's, but his mother's sins; because they were more notorious and infamous: and because they were the principal cause why God inflicted, and he was come to execute these judgments. The way of sin can never be the way of peace.