Adam Clarke on 2 Kings 15:12

This was the word of the Lord - unto Jehu - God had promised to Jehu that his sons should sit on the throne of Israel to the fourth generation; and so it came to pass, for Jehoahaz, Joash, Jeroboam, and Zachariah, succeeded Jehu, to whom this promise was made. But because he executed the Divine purpose with an uncommanded cruelty, therefore God cut his family short, according to his word by Hosea, I will avenge the blood of Jezreel upon the house of Jehu; and I will cause to cease the kingdom of the house of Israel, Hos 1:4.