2 Chronicles 18:13-15

But Micaiah said, “As the LORD lives, I will [only] speak what my God says.” When he came to the king, the king said to him, “Micaiah, shall we go to Ramoth-gilead to battle, or shall I refrain?” And he said, “Go up and succeed, for they will be handed over to you.” Then the king said to him, “How many times must I warn you (make you swear an oath) to tell me nothing but the truth in the name of the LORD?”