I Kings 22:24 Then Zedekiah the son of Chenaanah came near and struck Micaiah on the cheek and said, “How did the Spirit of the Lord go from me to speak to you?” 25 And Micaiah said, “Behold, you shall see on that day when you go into an inner chamber to hide yourself.” 26 And the king of Israel said, “Seize Micaiah, and take him back to Amon the governor of the city and to Joash the king's son, 27 and say, ‘Thus says the king, “Put this fellow in prison and feed him meager rations of bread and water, until I come in peace.”’” 28 And Micaiah said, “If you return in peace, the Lord has not spoken by me.” And he said, “Hear, all you peoples!”
God had given Ahab, the king of Israel mentioned above, a stay of sentence. But three years later, he again refused to listen to God's message. Ahab's 400 yes men - false prophets - had said: "go ahead into battle." But Micaiah, the prophet of the Lord, who often disagreed with Ahab, said otherwise. Ahab's solution was to put Micaiah under house arrest until he returned from battle. As seen above, Micaiah said: "you won't." The passage goes on to tell us that Ahab disguised himself so as to not be obvious during battle, but he was killed anyway. He did not return. The people had proof Micaiah spoke for the Lord. Would they now believe him, and even more so, God?