Treasury of Scripture Knowledge
2 Thessalonians 2:2
that you not be quickly shaken from your
composure or be disturbed either by a spirit or a message or a letter as if from us, to the effect that the day of the Lord has come.
2 Thessalonians 3:14
If anyone does not obey our
instruction in this letter, take special note of that person and do not associate with him, so that he will be put to shame.