Kehilah In Thessalonika 2 2:2 Orthodox Jewish Bible (OJB)

that you not become too hastily disturbed from your spiritual composure nor frightened either by a ruach or by a dibur (saying, utterance) or by an iggeret (letter), as if from us, saying that the YOM HASHEM (Day of the L-rd, AMOS 5:18) has come.