1 Thessalonians 3:3

“Therefore I ask that you not be discouraged by my tribulations for you, which are your glory.” How are Paul’s tribulations “for them”? How are they “their glory”? It is because God so loved them that he gave even the Son for them and afflicted his servants for them. Paul was in prison so that they might attain so many blessings. Surely this comes from God’s exceeding love toward them. It illustrates what God also says concerning the prophets, “I have slain them by the word of my mouth.” But why were they fainting through another’s affliction? He means they were troubled and distressed. Paul says the same things when writing to the Thessalonians: “that no one be moved by these afflictions.” For we should rejoice in afflictions rather than grieve in them. If you find consolation in being warned beforehand, we tell you that here we have tribulation. And why you ask? Because the Lord has ordered it so.

"That no man be moved by these afflictions; for yourselves know that hereunto we are appointed. For verily, when we were with you, we told you beforehand that we are to suffer affliction; even as it came to pass, and ye know."

What then does he say here? Because the temptations of the teachers trouble their disciples, and he had then fallen into many temptations, as also he himself says, that "Satan hindered us," always saying this; "both once," he says, "and again I would have come to you," and was not able, which was a proof of great violence. And it was reasonable that this should trouble them, for they are not so much troubled at their own temptations, as at those of their teachers; as neither is the soldier so much troubled at his own trials, as when he sees his general wounded. "To establish you," he says; not that they were at all deficient in faith, nor that they required to learn anything.

Ye ought not, he says, to be troubled, for nothing strange, nothing contrary to expectation is happening; which was sufficient to raise them up. For do you see that on this account also Christ foretold to His disciples? For hear Him saying, "Now I have told you before it came to pass, that when it is come to pass ye may believe." (John xiv. 29) For greatly indeed, greatly does it tend to the comfort of others, to have heard from their teachers what is to happen. For as he that is sick, if he hear from his physician that this or that is taking place, is not much troubled; but if anything happen unexpectedly, as if he too were at a loss, and the disorder was beyond his art, he is afflicted and troubled; so also is it here. Which Paul fore-knowing, foretold to them, "we are about to be afflicted," "as it came to pass, and ye know." He not only says that this came to pass, but that he foretold many things, and they happened. "Hereunto we are appointed." So that not only ye ought not to be troubled and disturbed about the past, but not even about the future, if any such thing should happen, "for hereunto we are appointed."

Let us hear, who have ears to hear. The Christian is appointed hereunto. For concerning all the faithful is this said, "Hereunto we are appointed." And we, as if we were appointed for ease, think it strange if we suffer anything; and yet what reason have we for thinking anything strange? For no season of affliction or temptation has overtaken us, but what is common to man.

Paul does not say that no one should occasionally grow weak with weariness but rather that no one should “stoop down” or bow to persecutors.

Paul says that Timothy is coming to strengthen the Thessalonians with his words, stabilizing the thinking of the Thessalonians by his presence with them, lest they collapse under the weight of their tribulations. Paul describes this collapsing as a “commotion,” being caught up in the passions of your persecutors.

The Apostle indicates here what benefit the confirmation from the person of holy Timothy was meant to bring them. This, he says, is so that they would not be shaken, that is, not lose heart and not grow weak in view of my trials. For the devil, when he finds a favorable time for temptation, unsettles the unsteady by reminding them of their former ease, so that they would fall away from that which was the cause of their afflictions. Some, however, have said that σαίνεθαι, "to be shaken, to be disturbed," is used in place of ταράττεσθαι, "to be agitated" — a metaphor taken from dogs which, when they fawn, wag their tails.

We should hear that Christians are destined to suffer: for he did not say this about the apostles alone. So, when we are appointed to this, what is new if we experience sorrow? Therefore we must remain undisturbed not only by past temptations, but also by future ones. This should be all the more characteristic of us.

And you are in need of encouragement in your faith, that no one be moved by these afflictions. "If the anger of the ruler rises against you, do not leave your place" (Ec. 10:4). And there is a twofold consideration strengthening them. The first is related to a divine ordination: You yourselves know that this is to be our lot, almost as if implying that God ordained that you shall enter into heaven through tribulations: "Through many tribulations we must enter the kingdom of God" (Ac. 14:22). "All who desire to live a godly life in Christ Jesus will be persecuted" (2 Tim. 3:12). Christ Himself traveled this path as is shown in Luke (24:46): "Was it not necessary that the Christ should suffer these things and enter into his glory?"