2 Chronicles 18:31 shows Jehoshaphat mistaken for Ahab and nearly killed -- a direct danger resulting from his alliance in 18:1.

2 Chronicles 22:3 says Ahaziah walked in Ahab's ways because his mother (from Ahab) counseled him -- a direct outcome of the alliance in 18:1.

2 Chronicles 22:2 identifies Ahaziah's mother Athaliah as from Omri's line -- the marriage alliance from 18:1 continues to affect later generations.

2 Chronicles 21:6 says Jehoram, Jehoshaphat's son, married Ahab's daughter and did evil -- a consequence of the alliance in 18:1 corrupting the royal line.

2 Chronicles 19:2 rebukes Jehoshaphat for helping and loving the wicked -- a direct judgment on the marriage alliance from 18:1.

2 Chronicles 19:2 rebukes Jehoshaphat for helping the wicked (Ahab) -- a direct condemnation of the alliance made in 18:1.

2 Chronicles 17:12 describes Jehoshaphat's increasing power and building projects, providing the context of wealth that enables his alliance with Ahab.

2 Chronicles 17:5 shows Jehoshaphat's riches and honor came from God's establishment -- the same prosperity that later leads to his alliance with Ahab.

2 Corinthians 6:14 warns against unequal yoking with unbelievers, directly applicable to Jehoshaphat's disastrous alliance with idolater Ahab.

2 Kings 11:1 records Athaliah's massacre of the royal family — a disastrous outcome of Jehoshaphat's marital alliance with Ahab.

2 Kings 8:27 states Ahaziah walked in Ahab's evil ways because he was son-in-law to Ahab, directly linking the alliance to sin.

2 Kings 8:26 shows Ahaziah's mother Athaliah (Ahab's daughter) as a consequence of the marriage alliance, corrupting Judah's royal line.

2 Kings 8:18 reveals the consequence: Jehoshaphat's son Jehoram marries Ahab's daughter and does evil, directly stemming from the marriage alliance in 18:1.

1 Kings 21:25 highlights Ahab's extreme wickedness incited by Jezebel, underscoring the folly of allying with him.

1 Kings 16:31-33 reveals Ahab's Baal worship and evil, showing the spiritual danger of Jehoshaphat's marriage alliance with him.

1 Kings 22:2 provides the parallel account of Jehoshaphat's visit to Ahab, confirming the same historical event.

1 Kings 3:1 describes Solomon's marriage alliance with Pharaoh — a similar pattern of royal alliance with foreign powers, both problematic.