American Standard Version (ASV):
And he walked in the way of the house of Ahab, and did that which was evil in the sight of Jehovah, as did the house of Ahab; for he was the son-in-law of the house of Ahab.
King James Version (KJV):
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.