¹³ But you must never stop doing what is right, our Christian friends, even when it causes trouble for you. ¹⁴ Maybe someone among you will not obey the message that we have written in this letter. Make sure that everyone knows about someone like that. Do not be friends with him, so that he may become ashamed. ¹⁵ But remember that he is a believer, as you are. So warn him carefully.