¹⁵ “Be on your guard against false prophets^(A) who come to you in sheep’s^(B) clothing^(C) but inwardly are ravaging wolves.^(D)

⁸ But even if we or an angel^(A) from heaven should preach to you a gospel contrary to what we have preached to you,^(B) a curse be on him!^{[a] 9} As we have said before, I now say again: If anyone is preaching to you a gospel contrary to what you received,^(C) a curse be on him!

Warning against Irresponsible Behavior

⁶ Now we command you, brothers and sisters, in the name^(A) of our Lord Jesus Christ, to keep away from every brother or sister^(B) who is idle and does not live^[a] according to the tradition^(C) received^(D) from us.

¹⁴ If anyone does not obey our instruction in this letter, take note of that person; don’t associate with him, so that he may be ashamed.