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.
Cross-reference
In 2 Kings 8:26, Ahaziah's mother Athaliah (daughter of Ahab) shows the family link behind Jehoram's evil.
In 2 Kings 21:13, God applies the 'plummet of the house of Ahab' to judge Jerusalem, linking to Jehoram's following of Ahab.
In 2 Kings 9:7, God commands Jehu to destroy Ahab's house — judgment against the evil house that Jehoram of Judah followed here.
In 2 Kings 9:8, the prophecy against Ahab's house reveals the doomed dynasty Jehoram imitates.
In 2 Kings 16:3, King Ahaz likewise walked in Israel's ways—a parallel pattern of Judah's kings following Israel's evil.
In 2 Kings 17:19, the narrator summarizes Judah's sin as walking in Israel's customs—echoing Jehoram's behavior.
In 2 Kings 3:2, Jehoram of Israel is evil but less than Ahab — contrasting with Jehoram of Judah here who follows Ahab's ways fully.
In 2 Kings 10:14, Jehu kills Ahaziah's relatives—the bloody consequence of Jehoram's alliance with Ahab's house.
In 2 Kings 21:3, Manasseh also imitates Ahab, paralleling Jehoram's evil pattern.
In 2 Chronicles 21:13, the same account adds that Jehoram led Judah into whoredom like Ahab's house.
In 2 Chronicles 21:6, the same statement about Jehoram walking in Ahab's ways is repeated.
In 2 Chronicles 19:2, Jehu rebukes Jehoshaphat for allying with Ahab—the root of Jehoram's evil.
In 2 Chronicles 18:1, Jehoshaphat's marriage alliance with Ahab explains the origin of Jehoram's corruption.
In 2 Chronicles 22:1-4, the same marriage leads to Ahaziah also walking in evil ways, showing the generational corruption from Ahab's house.
Nehemiah 13:26 directly references Solomon's fall because of foreign women, reinforcing the warning that such marriages corrupt.
1 Kings 11:1-5 shows Solomon's foreign wives turning his heart to idols—the same pattern of marriage causing apostasy as seen in Jehoram.
In 2 Chronicles 17:4, Jehoshaphat sought God and avoided Israel's ways—contrasting sharply with his son Jehoram.
In 1 Kings 22:53, Ahaziah serves Baal like his father — echoing the Baal worship Jehoram of Judah adopted from Ahab's house.
1 Kings 22:2 recounts Jehoshaphat's alliance with Ahab, the political backdrop that led to Jehoram marrying Athaliah.
In Micah 6:16, the prophet condemns following statutes of Omri and Ahab, which Jehoram did.
In 1 Kings 22:52, Ahaziah of Israel walks in evil ways like his parents — consistent with the pattern Jehoram of Judah imitated here.
1 Kings 22:44 states Jehoshaphat made peace with Israel's king, providing the context for the marriage alliance that corrupted Jehoram.
In 1 Kings 21:25, Ahab's extreme evil is described—the standard Jehoram imitated.