2 Kings 10:30

Generation. So Joachaz, Joas, Jeroboam II, and Zacharias, succeeded to the throne. This small temporal reward he obtained for the little good which he had done; while, on the other hand, he was punished for his manifold transgressions. Osee (i. 4,) reproaches him even for the blood which he had spilt in Jezrahel; for, though Achab and Joram were guilty, was Jehu innocent? Can this murder of Ochozias be justified? (Calmet) --- "What advantage was it to him that he received some little transitory reward of a temporal kingdom, for his obedience in exterminating the house of Achab; which he indeed exhibited to gratify his own lust of dominion?" (St Augustine, contra mend. ii. c. 2.) This holy doctor observes, that moral good works are thus rewarded. (Worthington)