1 Kings 22:44
And Jehoshaphat made peace with the king of Israel.
1 Kings 22:2
And it came to pass in the third year, that Jehoshaphat, the king of Judah, came down to the king of Israel.
2 Kings 8:18
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 19:2
And Jehu, the son of Hanani, the seer, went out to meet him and said to king Jehoshaphat, Should thou help the ungodly and love those that hate the LORD? Therefore, the wrath of the presence of the LORD shall be upon thee.
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.
2 Corinthians 6:14
Be ye not unequally yoked together with unbelievers, for what fellowship does righteousness have with unrighteousness? and what communion does light have with darkness?