The salutation by the hand of me, Paul, which is [the] mark in every letter; so I write.
A short line at the end of a letter carries surprising weight: Paul stops dictating, takes the pen, and signs. Why did an apostle need to prove his own handwriting? The answer shows how far the early churches could trust his letters.
False teachers had been troubling the Thessalonians. Commentators trace this closing signature back to that trouble.
It seems these false teachers had gone so far as to produce a document. They pretended it was a letter from Paul, in which he backed up their false teaching. So, to let them know that the letter they now received was really his, he added: "I, Paul, write this greeting with my own hand. This is the sign of genuineness in every letter of mine; it is the way I write."
Paul dictated his letters while someone else held the pen. That habit is why he needed a personal mark at the end. It also stands beside his demand that the whole church hear the letter.
"I, Paul, write this greeting with my own hand. This is the sign of genuineness in every letter of mine; it is the way I write." How fitting this is in one of the apostle's earliest letters! God called him to write many, and to prove carefully to the Gentile believers that each letter was his. Even more solemnly, in the first letter he had urged the Thessalonians, in the Lord's name, to read it to all the believers. Some held that Scripture, though addressed to the whole church, should not be read to or by everyone. That idea interfered with God's authority and with His grace… Peter makes it sure and plain that Paul's letters are Scripture, as truly as any other of the holy writings (2 Peter 3:16). So it was all the more necessary that his letters carried the mark of his hand in greeting the saints, since he normally used a secretary.
The signature was not about pride of authorship. It guaranteed the text, and the text was more than Paul's own words.
From 2 Thessalonians 3:17 we learn how Paul verified his letters and secured their accuracy. This mattered, because his letters carried the character of commandments of the Lord (1 Cor. 14:37). The greeting at the end came from his own hand. It verified everything in the letter as his — that is, as carrying apostolic inspired authority. We see what he thought of his own letters. He thought their accuracy important, just because they were not his, but from the Lord.
Paul says this sign appears in every letter of his. So what were the readers to look for? One writer points to the short prayer for grace that closes the letters, written in Paul's own hand.
Someone at Thessalonica seems to have tried to pass off a forged letter. So, early in his written ministry, the apostle chose a token to prove what he wrote and to keep the saints from being fooled: "The grace of our Lord Jesus Christ be with you." He may have written it with his own hand, as he did in his second letter to the Thessalonians. This greeting is attached to all his letters, either in its longest form (2 Cor. 13:14) or its shortest (1 Tim. 6:21). And while he lived, no other New Testament writer used it.
The handwriting proved the letter came from Paul. But there is a second token as well, an inner one.
He was afraid someone would trick them with a false letter. To guard them, he tells them that his greeting, in his own handwriting, would be the token of a genuine letter from himself. The grace of our Lord Jesus Christ was, as we always see, the inner token.
- Forgery — A document pretending to be Paul's letter had spread false teaching among the Thessalonians. This verse is his answer.
- Signature — He dictated to a secretary. So the greeting in his own hand became the mark of a genuine letter.
- Authority — He guarded the accuracy of his letters because the words were not his own. They came from the Lord, with the weight of commandments.
- Openness — The same apostle told the church to read his letter to all the believers. Keeping Scripture from any of them cuts against God's authority and His grace.
- Grace — The handwriting was the outward token; the grace of our Lord Jesus Christ, with which he closes, is the inner one.
The grace of our Lord Jesus Christ [be] with you all.
Paul ends every letter he writes with a wish for grace. Here that wish is also his signature, written after a forged letter in his name had unsettled the church at Thessalonica — and this time it reaches not just "you" but "you all."
The sentence is not a polite sign-off. It is the mark Paul chose so his readers could tell a real letter from a fake.
Very early in the apostle's work among the Gentiles, it seems that a letter claiming to come from him reached the saints at Thessalonica. Its aim was to make them believe that the day of the Lord had come. It was a forgery, but a forgery with a definite intent. So to guard them and others from being deceived in the future, he told them what would be the mark of his letters. It was that salutation which, either in a longer form or a shorter one, is found at the close of all his letters. And no other apostle during Paul's life ever added that salutation to the end of his own.
The handwriting was the outward proof that a letter was his. One writer points to a second mark, carried in the words themselves.
He was afraid they might be taken in by tricks like that. To guard them, he tells them that his greeting, in his own handwriting, would be the mark of a genuine message from himself. The grace of our Lord Jesus Christ was, as we always see, the inner mark.
The first letter to the Thessalonians ends with almost the same words. One word is new.
The closing words of the two letters are very similar, yet they differ noticeably. "The grace of our Lord Jesus Christ be with you," says the first — be "with you all," says the second. Here we find the stronger emphasis, placed where and when it was most needed. Yet the same farewell of divine love appears in substance in both.
Chapter 3 has just told the church to withdraw from believers who refuse to work and refuse to obey. The last line does not withdraw from them.
The second letter adds the word "all," as though to include even those believers who were walking in disorder. His desire for their blessing has not changed. These letters keep their precious pastoral character to the end.
The words are so familiar that they can slip past unnoticed. One writer traces them back to where Scripture explains them.
The grace of our Lord Jesus Christ! We have heard those words before somewhere. Where is it that we have heard them? Our hearts go back to that beautiful verse in 2 Corinthians 8: "For you know the grace of our Lord Jesus Christ, that though he was rich, yet for your sake he became poor, so that you by his poverty might become rich." It is something that we know. But how do you know it? You know it by the way it has shown itself. He who was rich for your sakes became poor, so that you through His poverty might be rich. It is all the love of that blessed Person active towards us for our blessing, for our joy, for our enrichment.
The letter has just given hard commands about work and discipline. Willpower alone will not keep them.
He has asked peace for us from the Lord of peace. Now he closes by asking that the grace of our Lord Jesus Christ may be with all. There is only one way for the instructions of this letter to be carried out. It takes a company kept in the peace of the Lord, with the Lord Himself among them, and a constant supply of His grace.
- Signed — the blessing is also Paul's handwritten mark. He chose it after a forged letter had tried to convince this church that the day of the Lord had come.
- Genuine — the handwriting showed who sent the letter. The grace named in it was the inner mark.
- Widened — the first letter said "with you"; the second says "with you all." Even believers walking in disorder are inside that blessing.
- Defined — this grace is not an idea but a history: the One who was rich became poor so that we might become rich.
- Supplied — every command in the letter needs that same grace to keep coming. That is why grace has the last word.