2 Chronicles 18:1-5
Jehoshaphat Allies with Ahab
18:1 Jehoshaphat was very wealthy and greatly respected. He made an alliance by marriage with Ahab,
18:2 and after several years went down to visit Ahab in Samaria. Ahab slaughtered many sheep and cattle to honor Jehoshaphat and those who came with him. He persuaded him to join in an attack against Ramoth Gilead.
18:3 King Ahab of Israel said to Jehoshaphat, “Will you go with me to attack Ramoth Gilead?” Jehoshaphat replied to the king of Israel, “I will support you; my army is at your disposal and will support you in battle.”
18:4 Then Jehoshaphat added, “First seek an oracle from the Lord.”
18:5 So the king of Israel assembled 400 prophets and asked them, “Should we attack Ramoth Gilead or not?” They said, “Attack! God will hand it over to the king.”