The salutation. — At this point St. Paul takes the pen out of his secretary’s hand, and adds the closing words himself. The actual salutation does not begin until the benediction of the 18th verse, to which this 17th is intended to attract attention.
Which. — Namely, the autograph addition of a salutation, or valedictory prayer, not the special words in which it was couched.
The token. — Rather, a token — a mark, that is, by which to tell an authentic Epistle of his from those forged letters with which false brethren had troubled the Thessalonian Church (2 Thessalonians 2:2). At first sight, it seems to us too audacious for any one to have conceived the thought of writing a letter under the name of St. Paul; but, on the other hand, we must recollect several points. (1) St. Paul’s genuine First Epistle, in spite of its claim to inspiration (1 Thessalonians 4:15), could not yet have acquired in the eyes of the Thessalonians the sanctity it wears for us; they had no notion of such a thing as Holy Scriptures, and even if they had, St. Paul was a familiar figure, a mechanic who had just left them, not yet invested with the heroic halo. (2) Such literary forgeries were not uncommon in that age, and scarcely considered reprehensible, unless they were framed to inculcate with authority some heretical teaching. Apocryphal Gospels soon after abounded, under false titles, and works fathered upon St. Clement and other great Church teachers. (3) There need nor always have been a direct intention to deceive the readers as to the authorship, but the renowned name acted as a tempting advertisement for the work, and the theories thus shot forth hit their mark; whether the real authorship were discovered or not mattered little in comparison. Such points must be borne in mind before we accept as genuine any of the early Christian writings.
In every epistle. — That is, naturally, “in every Epistle which I write.” It cannot be narrowly restricted to mean, “in every Epistle which I shall for the future write to you Thessalonians,” though that is, of course, the practical significance. Nor does it imply a formed design of writing other Epistles to other churches. It seems necessary to suppose that St. Paul had already made a practice of concluding Letters with his autograph, though only one Letter of his is now extant of an earlier date than our present Epistle. There is no reason whatever to suppose that all the Letters ever written by St. Paul have been preserved to us (see Dr. Lightfoot’s Philippians, p. 136, et seq.), any more than all the sayings and acts of Jesus Christ (John 21:25); and even when he wrote his First Epistle to Thessalonica he had seen the necessity of giving careful directions about his Letters (1 Thessalonians 5:27), and of rousing his correspondents to a reasonable scepticism (1 Thessalonians 5:21). The same solicitude re-appears in 1 Corinthians 16:21; Galatians 6:11. And the rule which St. Paul had already made he always observed, so far as we can test; for all his extant Epistles, as Bishop Wordsworth points out on 1 Thessalonians 5:28, contain his “salutation” at the end.
So I write. — “Such is my handwriting.” It need not mean that the Thessalonians hitherto were unacquainted with his hand; he only calls their attention closely to it. The great bold handwriting (comp. Galatians 6:11) would not easily be mistaken.