In Samaria - The family of Ahab had made Jezreel a sort of second capital, and had reigned there, at least in part 2 Kings 9:15-30. Jehu and his descendants seem to have fixed their residence wholly in Samaria 2 Kings 13:1, 2 Kings 13:10; 2 Kings 14:23; 2 Kings 15:8.

And the time that Jehu reigned was twenty and eight years. Which was longer than any king of Israel had reigned.

And the time that Jehu reigned over Israel in Samaria was twenty and eight years.

the time: Heb. the days were

10:29-36 It is justly questionable whether Jehu acted from a good principle, and whether he did not take some false steps in doing it; yet no services done for God shall go unrewarded. But true conversion is not only from gross sin, but from all sin; not only from false gods, but from false worships. True conversion is not only from wasteful sins, but from gainful sins; not only from sins which hurt our worldly interests, but from those that support and befriend them; in forsaking which is the great trial whether we can deny ourselves and trust God. Jehu showed great care and zeal for rooting out a false religion, but in the true religion he cared not, took no heed to please God and do his duty. Those that are heedless, it is to be feared, are graceless. The people were also careless, therefore it is not strange that in those days the Lord began to cut Israel short. They were short in their duty to God, therefore God cut them short in their extent, wealth, and power.