And Jehu the son of Hanani the seer,.... The son of him that reproved Asa, for which he put him in prison, Ch2 17:7, but that did not deter this his son from reproving Jehoshaphat: went out to meet him; as he was returning: and said to King Jehoshaphat, shouldest thou help the ungodly; such an one as Ahab, an idolater, murderer, and persecutor: and love them that hate the Lord? his laws, worship, and ordinances, as he had; intimating, that he had done wrong, by entering into alliance and affinity with him, by showing him friendship, and assisting him in his war against the Syrians: therefore is wrath upon thee from before the Lord; which appeared in the war of the Ammonites and Moabites with him, related in the next chapter, and in the calamities that came upon his family, his sons being slain by Jehoram that succeeded him, and his grandsons by Jehu.