2 Thessalonians 2:5

5. Remember ye not No reproof here, but one of several appeals to the memory of his readers, with which these epistles abound.

I told you Probably not in his public preaching, but in private conversation. St. Paul, then, is not here giving them any new revelation, or any after-thought. He had told the Thessalonians at his first visit that events of unknown magnitude intervened between the present hour and the parousia.