And the Lord said unto Jehu - Probably by the mouth of Elisha. To a certain extent Jehu’s measures were acts of obedience, for which God might see fit to assign him a temporal reward.
Thy children ... - This was accomplished in the persons of Jehoahaz, Joash, Jeroboam, and Zachariah, the son, grandson, great-grandson, and great-great-grandson of Jehu (compare the marginal references). No other family sat upon the throne of Israel so long. The house of Omri, which furnished four kings, held the crown for three generations only and for less than 50 years - that of Jehu reigned for five generations and for more than 100 years.