The Lord smote the king, so that he was a leper - The circumstances under which this terrible affliction befel one of the greatest of the Jewish kings, are given at some length by the author of Chronicles (marginal reference), who supplies us with a tolerably full account of this important reign, which the writer of Kings dismisses in half-a-dozen verses.
A several house - “A house of liberation,” or, freedom. On the necessity, under which the Law placed lepers, of living apart from other men, see marginal reference Jotham became regent in his father’s room, and exercised the functions of judge (1 Kings 3:9 note), from the time that his father became a leper.