1 Kings 22:10-12

10Now the king of Israel and King Jehoshaphat of Judah, clothed in royal attire, were each sitting on his own throne. They were on the threshing floor at the entrance to the gate of Samaria, and all the prophets were prophesying in front of them.

11Then Zedekiah son of Chenaanah made iron horns and said, “This is what the Lord says: ‘You will gore the Arameans with these until they are finished off.’”

12And all the prophets were prophesying the same: “March up to Ramoth-gilead and succeed, for the Lord will hand it over to the king.”