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

2 Chronicles 18:1 explains the origin of Jehoram's marriage to Ahab's daughter — through Jehoshaphat's alliance.

2 Chronicles 22:2 identifies Jehoram's wife as Athaliah, granddaughter of Omri, confirming the Ahab connection.

2 Chronicles 28:2 uses identical phrasing 'walked in the ways of the kings of Israel' for Ahaz, showing repeated pattern of evil.

1 Kings 16:25-33 details the evil of Omri and Ahab, the pattern Jehoram is said to follow here.

2 Kings 8:18 is nearly identical, repeating that Jehoram walked in Ahab's ways because of his wife.

1 Kings 11:2 gives God's command against foreign marriages — the very command Jehoram violated by marrying Ahab's daughter.