2 Chronicles 18:13-15

13But Micaiah said, “As surely as the Lord lives, I can tell him only what my God says.” 14When he arrived, the king asked him, “Micaiah, shall we go to war against Ramoth Gilead, or shall I not?” “Attack and be victorious,” he answered, “for they will be given into your hand.” 15The king said to him, “How many times must I make you swear to tell me nothing but the truth in the name of the Lord?”