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."
Cross References (ranked by relevance)
2 Chronicles 18:1
Now Jehoshaphat had riches and honour in abundance, and joined affinity with Ahab.
2 Kings 8:18
And he walked in the way of the kings of Israel, as did the house of Ahab: for the daughter of Ahab was his wife: and he did evil in the sight of the LORD.
2 Chronicles 22:2
Forty and two years old was Ahaziah when he began to reign, and he reigned one year in Jerusalem. His mother’s name also was Athaliah the daughter of Omri.