2 Chronicles 21:6

And he walked in the way of the kings of Israel, like as did the house of Ahab: for he had the daughter of Ahab to wife: and he wrought [that which was] evil in the eyes of the LORD.

Ver. 6. And he walked in the ways of the kings of Israel.] He was an idolater, and therefore so cruel and bloody minded toward his innocent brethren. It is probable that he charged them with high treason, which ever was unicum crimen eorum qui crimine vacabant, saith Lipsius; but the Hebrews say that he slew them because they walked in the good ways of their father Jehoshaphat, and would not yield to his idolatries; and then it was the worse: those princes might be put to death as their partisans.

For he had the daughter of Ahab to wife,] viz., Wicked Athaliah, that Jezebel of Jerusalem. She is called also the daughter of Omri, Ahab's father, to denote the deep ingraffing of idolatrous principles within her breast, as taking them from two such arch-idolaters.