2 Re 8:27

And he walked in the way of the house of Ahab, and did evil in the sight of the LORD, as [did] the house of Ahab: for he [was] the son in law of the house of Ahab.

Ver. 27. For he was the son-in-law of the house of Ahab.] His father was so, and himself might be so too by his mother Athaliah's persuasion. Thus idolatry came to be so deeply rooted and riveted in that family, that it could not be rooted out but by rooting up the corrupted stock, as one hath it.