The interpretation timeline
2 Thessalonians 1:10 Douay-Rheims

When he shall come to be glorified in his saints, and to be made wonderful in all them who have believed; because our testimony was believed upon you in that day.

A.D. 407 – 1871 7 witnesses 8 excerpts

Patristic

before A.D. 750
407
A.D.
John Chrysostom Patristic
A.D. 347–407
“"Who shall suffer punishment, even eternal destruction from the face of the Lord, and from the glory of His might, when He shall come to be glorified in His Saints, and to be marveled at in all them that believed." There are many men, who form good hopes not by abstaining from their sins, but by thinking that hell is not so terrible as it is said to be, but milder than what is threatened, and temporary, not eternal; and about this they philosophize much. But I could show from many reasons, and conclude from the very expressions concerning hell, that it is not only not milder, but much more terrible than is threatened. But I do not now intend to discourse concerning these things. For the fear even from bare words is sufficient, though we do not fully unfold their meaning. But that it is not temporary, hear Paul now saying, concerning those who know not God, and who do not believe in the Gospel, that "they shall suffer punishment, even eternal destruction." How then is that temporary which is everlasting? "From the face of the Lord," he says. What is this? He here wishes to say how easily it might be. For since they were then much puffed up, there is no need, he says, of much trouble; it is enough that God comes and is seen, and all are involved in punishment and others in vengeance. "And from the glory of His might," he says "when He shall come to be glorified in His Saints, and to be marveled at in all them that believed." Is God glorified? Yea, he says, in all the Saints. How? For when they that puff so greatly see those who were scourged by them, who were despised, who were derided, even those now near to Him, it is His glory, or rather it is their glory, both theirs and His; His indeed, because He did not forsake them; theirs, because they were thought worthy of so great honor. For as it is His riches, that there are faitful men, so also it is His glory that there are those who are to enjoy His blessings. It is the glory of Him that is good, to have those to whom He may impart His beneficence. "And to be marveled at," he says, "in all them that believed," that is, "through them that believed." See here again, "in" is used for "through." For through them He is shown to be admirable, when He brings to so much splendor those who were pitiable and wretched, and who had suffered unnumbered ills, and had believed. His power is shown then; because although they seem to be deserted here, yet nevertheless they there enjoy great glory; then especially is shown all the glory and the power of God.”
Source
“"Because our testimony unto you was believed in that day." That is, when those are brought into public view, who have suffered unnumbered ills, designed to make them apostatize from the faith, and yet have not yielded, but have believed, God is glorified. Then is shown the glory of these men also. "Judge none blessed," it says, "before his death." On this account he says, in that day will be shown those who believed.”
Source
date
unknown
c. A.D. 550
“At the revelation of the Lord Jesus, from heaven, with the angels of his power, in flaming fire, rendering vengeance to them that know not God, and to them that obey not the Gospel of our Lord Jesus Christ, who shall suffer punishment, even eternal destruction from the face of the Lord and from the glory of his might, when he shall come to be glorified in his saints, and to be marvelled at in all them that believed.”
Source

Scholastic

c. 1100 – 1500
1272
A.D.
Thomas Aquinas Catholic
1225–1274
“Above, he dealt with their fitness for the future judgment; here he deals with the form of the judgment. And first he sets down the judgment as to the punishment of the wicked and the rewards of the good; secondly, he treats each part separately, at the words in flame. Again, first he sets down the judgment as to the punishment of the wicked; secondly as to the rewards of the good, at the words when he shall come. As to the first he had said above you endure as an example, etc., here he adds, if indeed it is just; "if" is used for "because." Hence another text has if indeed. Or if indeed may be referred to the example of just judgment; as if he were to say: it is just that you suffer these things, if indeed you merit from this. But the first reading and exposition is better. It is just to render in return. Ps. 93:2: rise up, you who judge the earth, render a reward to the proud. Is. 33:1: woe to you who plunder, shall you not also be plundered? Tribulation, namely of eternal damnation. Rom. 8:35: tribulation, or distress, etc. And to you who are troubled, rest. Lk. 16:25: you received good things in your life, and Lazarus likewise evil things. But now he is comforted here, while you are tormented. Apoc. 14:13: for from now on the Spirit says, that they may rest from their labors. With us, that is, an equal glory. But is this really true? I answer. Equality is twofold, namely absolute, of quantity, and of proportion. And the first is not equal as to man's participation, but is equal as to the beatitude participated, which is God; for man participates according to more and less, namely according as he loves God more ardently or less ardently. But according to the second, there will be a complete equality, because the glory of Peter stands to the grace given him and his merit just as the glory of Linus stands to his. This, I say, will be at the revelation, etc. Jn. 5:22: the Father has given all judgment to his Son, and this insofar as he is the Son of Man; hence it follows and has given him power to execute judgment, because in human form he will appear to all, but now he does not appear, because his humanity lies hidden in the glory of God, but then it will appear. Is. 40:5: and the glory of the Lord shall be revealed, etc. And this with the angels of his power, his ministers. Matt. 25:31: when the Son of Man shall come in his majesty, and all his angels with him, etc. Then when he says in flaming fire, he treats of both, namely the punishment of the wicked and the rewarding of the good; but in the punishment of the wicked he shows it to be bitter, just, and lasting. He says therefore rendering vengeance, that is, of him who judges those to be punished in flaming fire, the face of the world burning, and enveloping the reprobate, and thrusting them down forever. Ps. 96:3: fire shall go before him, etc. Again, it will be just on account of a twofold fault, namely of unbelief and of evil life. As to the first he says who have not known, that is, have not wished to know, God. Job 21:14: we do not wish the knowledge of your ways. 1 Cor. 14:38: he who is ignorant shall be ignored, etc. As to the second he says who do not obey the Gospel of our Lord Jesus Christ. Rom. 10:16: not all obey the Gospel. Disobedience is so great a sin that through it death came into this world, as is said in Rom. 5:19. Again it will be lasting, because they shall suffer eternal punishment in destruction. And it can be read in two ways, according as punishment is twofold, namely of sense and of loss. Concerning the punishment of sense it can be understood thus: they shall suffer, that is, shall endure eternal punishments without end, and this in destruction, because they shall always be dying. For it is otherwise with the punishments of this life and those of the next. For here, the more bitter they are, the shorter they are, because they are extinguished; but those are most grievous, because they are the punishments of death, and are without end. Hence it is said that they will always be as it were in death. Ps. 48:15: death shall feed upon them. Is., last chapter: their worm shall not die. But the punishment of loss is twofold, because they will be separated from the vision of God. Hence he says from the face of the Lord, namely removed. Job 13:16: no hypocrite shall come before his face. The other is the privation of the vision of the glory of the saints. Is., last chapter: let the wicked be taken away, that he may not see the glory of the saints, etc. Or otherwise, from the face of the Lord, etc. In this is shown the cause of the bitterness of the punishment of sense. For someone's sentence is voided, either on account of a higher judge, or on account of the power of a superior; but this will not be the case, because this judgment will proceed from the face of the Lord. Ps. 16:2: from your countenance let my judgment come forth, etc. And therefore he says they shall suffer punishment, that is, shall endure it, from the face of the Lord. Then when he says when he shall come, he treats of the rewarding of the saints. And first he sets down the reward; secondly the merit, at the words who have believed. He commends the glory of the saints, both as to its essence, through participation in the glory of God, when he says to be glorified, etc., and as to its surpassing character, at the words and to be marveled at. He says therefore when he shall come: Christ is indeed glorious. Phil. 2:11: every tongue should confess that the Lord Jesus Christ is in the glory of God the Father. To be glorified in his saints, because good is by its nature communicative of itself; or to be glorified in his saints, who are his members, in whom he dwells, and in whom he is glorified, when his glory, namely that of the head, is passed down even to his members. Is. 49:3: you are my servant, Israel, for in you I will be glorified. And this will exceed all wonder. Hence he says to be marveled at, etc. For wonder is a kind of astonishment arising from a great impression on the imagination. But so great is the glory of the saints that it cannot fall within the estimation of men. And therefore he says to be marveled at. Wis. 5:2: they shall marvel at the suddenness of unhoped-for salvation, etc. Then he sets down the merit, at the words who have believed, etc. And he sets down first the merit of faith, secondly the aid of prayer, at the words in which. He says therefore: this will be the glory, because our testimony has been believed upon you, which we believed concerning Christ, in that day, that is, on account of that day, because the good things we do are on account of that day. And he says this testimony is upon you, that is, above human sense. Ecclus. 9: very many things are above the sense of man, etc. For faith has no merit where human reason supplies proof. For unless it were above you, it would not be of great merit to believe. Or he says upon you, that is, it has dominion over you as you humbly submit your understanding to belief. 2 Cor. 10:5: bringing every understanding into captivity to the obedience of Christ. Thus the Gloss explains it. Or otherwise, and more according to the letter: I say that Christ will be glorified in you, who have believed, on the day of judgment, when the apostles will judge; and then the testimony, which is upon you, that is, concerning the readiness of your faith, will be certain and believed, that is, credible. Then when he says in which we pray, etc., he adds the aid of prayer, and first he sets forth what he asks; secondly to what end, at the words that may be glorified; thirdly by what means he might obtain what he asks, at the words according to the grace. Now he asks one thing on God's part, and two things on our part. He says therefore in which, that is, on account of which day, we also pray always. Rom. 1:9: without ceasing I make remembrance of you always in my prayers. 1 Kings 13:23: far be this sin from me before the Lord, that I should cease to pray for you. But to what end? That our God may deem you worthy of his calling, that is, may make you live worthily in the world according to your calling. Eph. 4:1: that you walk worthily of the calling by which you have been called. Again, on our part he asks two things: on the part of the will, that they may fully enjoy every goodness; hence he says that he may fulfill every desire of goodness, that is, may fulfill in you the desire of every good. Phil. 1: who works in us to will and to accomplish according to good will. Again, on the part of the understanding, that they may believe perfectly; therefore he says and the work of faith. Rom. 10:10: for with the heart one believes unto righteousness, but with the mouth confession is made unto salvation. And this may you work in virtue, that is, in constancy and fortitude, so that by no fear you may cease from confessing him. Or thus, in which, that is, on account of which day we pray, that God may deem it worthy to give you that to which he called you. 1 Pet. 3:9: to this you have been called, that you may possess a blessing by inheritance. And may he fulfill every good which you desire, which is in eternal life, when we shall have God. Ps. 102:5: who fills your desire with good things. Again, may he fulfill the work of faith, which will be when that which here we see through a glass and in a riddle, we shall then see face to face. But to what end? That the name of our Lord Jesus Christ may be glorified, etc., that is, that it may be for the glory of Christ; and that through you, both in the present and in the future, the name of Christ may be glorified in your good deeds. Matt. 5:16: let them see your good works, and glorify your Father who is in heaven. Conversely, of evil deeds it is said in Is. 52:5, and Rom. 2:24: the name of God is blasphemed through you. But by what shall we be able to attain that? According to the grace of our God, which is the root of all our good deeds. 1 Cor. 15:10: by the grace of God I am what I am, etc.”

Post-Reformation

c. 1650 – 1900
1771
A.D.
John Gill Reformed
1697–1771
“When he shall come to be glorified in his saints,.... Or by them who are set apart for holiness and happiness by God the Father; whose sins are expiated by the blood and sacrifice of Christ; to whom he is made sanctification; and who are sanctified by the Spirit and grace of God; and in whom Christ has a peculiar interest, through his Father's gift, his own purchase, and the power of his grace: and when he comes a second time he will be glorified in these persons; he will appear glorious to them; he will come in his own glory both as God and man; and in his Father's glory, authority, and majesty, conferred on him as the Judge of the whole earth; and with the glory of his angels, who will accompany him. And he will also bestow a glory on them; their souls will be endowed with perfect knowledge and holiness; and their bodies will be made like to his glorious body; and both will shine like the sun in the kingdom of their Father; and this glory on the members of Christ will redound to the glory of him their head. And as he will then, in the most full and clear manner, display the glory of his person and perfections, of his wisdom, power, faithfulness, and goodness, set off the glory of his offices, and, the administration of them, and open the riches both of his grace and glory to them; so they will, in return, ascribe honour, praise, and glory, to him, and give him the glory of their salvation to all eternity: and to be admired in all them that believe; who are the same with the saints; these are convertible terms; for no man can be a saint, unless he is a believer in Christ, let him make what pretensions to holiness he will: and no man can be a true believer in Christ, unless he is a saint; for true faith works by love, and in a way of holiness; and in those, or by those that are sanctified by faith in him, will he be admired when he appears a second time. He is admired by them now; he is with them the chiefest among ten thousands, and altogether lovely: they wonder at the glory and beauty of his person, and the fulness of his grace; and are amazed that such as they are should be admitted to communion with him; and how much more will they wonder, when they shall see him as he is? and he will be admired by others on the account of them, when they shall see those that they have despised, and persecuted, and accounted as the filth of the world, and the offscouring of all things, received into the arms of Jesus with all the expressions of tenderness and love; placed at his right hand, and set down with him on his throne, clothed with white robes, and crowns on their head, and palms in their hands: and he himself will be admired with them, when they shall see him whom they took to be a mere man, and who was a man of sorrows, and acquainted with griefs, and was loaded with reproach and ignominy, and at last suffered a shameful death, coming in the clouds of heaven in power and great glory as the Judge of quick and dead; thus will he be admired by them, in them, and with them. (Because our testimony among you was believed) in that day; the phrase, "in that day", belongs to all that goes before, as that Christ shall take vengeance on wicked men, and they shall be punished by him, and he shall be glorified and admired in and by his people in that day, when he shall be revealed from heaven, and come to judge both quick and dead. Though some versions read it in construction with the clause immediately preceding, "because our testimony among you was believed in that day"; or concerning that day; that is, you gave credit to the testimony we bore, when among you, concerning this illustrious day of the Lord; or our testimony, the ministry of the word by us, in which we bore a testimony to the person and grace of Christ, to his first, and to his second coming, was received and embraced by you with a view to this day, and to the enjoyment of the glory of it. The Arabic version renders it, "for our testimony will be true in that day"; that is, it will appear to be so, everything we have said will be accomplished then. The Syriac version is very remote, "that our testimony concerning you may be believed in that day": but it is best to read this clause in a parenthesis, as in our version; which is an application of what is said to the Thessalonians, who might conclude, that since they had embraced the testimony of the Lord Jesus, borne unto him by his apostles, they would be found among the number of the saints and believers, in whom Christ would be glorified and admired; the consideration of which might animate and encourage them to endure afflictions and persecutions with patience, and to hold out to the end, and at last enjoy the heavenly glory, for which the apostle next prays.”
Source
1832
A.D.
Adam Clarke Methodist
1762–1832
“When he shall come to be glorified in his saints - As the grace of God is peculiarly glorified in saving sinners and making them into saints, this gracious power will be particularly manifested in the great day, when countless millions will appear before that throne who have come out of great tribulation, and have washed their robes and made them white in the blood of the Lamb. And to be admired - Οαυμασθηναι· To be wondered at among and on the account of all them that believe. Much as true believers admire the perfections of the Redeemer of mankind, and much as they wonder at his amazing condescension in becoming man, and dying for the sins of the world; all their present amazement and wonder will be as nothing when compared with what they shall feel when they come to see him in all his glory, the glory that he had with the father before the world was. In reference to this we may apply those words of St. John: "Beloved, now are we the sons of God; and it doth not yet appear what we shall be: but we know that when he shall appear we shall be like him; for we shall see him as he is." Jo1 3:2. Instead of τοις πιστευουσιν, them that believe, τοις πιστευσασιν, them that have believed, is the reading of ABCDEF, many others, the later Syriac, Slavonic, Vulgate, and Itala, with most of the Greek fathers. This reading is undoubtedly genuine. Because our testimony - was believed in that day - The members of this sentence seem to have been strangely transposed. I believe it should be read thus: "In that day, when he shall come to be glorified in his saints, and admired among all them that have believed; for our testimony was believed among you." The Thessalonians had credited what the apostles had said and written, not only concerning Jesus Christ in general, but concerning the day of judgment in particular.”
Source
1849
A.D.
1774–1849
“This shall be at the last day, when Christ shall come to be glorified in his saints, and to be made [2] wonderful (to be admired and praised) in or by all them who have believed in that day: (i.e. the things foretold of that day) because our testimony [3] was believed upon you concerning that day, i.e. as to the punishments and rewards that shall be given on that day. (Witham)”
Source
1871
A.D.
1871
“"When He shall have come." glorified in his saints--as the element and mirror IN which His glory shall shine brightly (Joh 17:10). admired in all them that believe--Greek, "them that believed." Once they believed, now they see: they had taken His word on trust. Now His word is made good and they need faith no longer. With wonder all celestial intelligences (Eph 3:10) shall see and admire the Redeemer on account of the excellencies which He has wrought in them. because, &c.--Supply for the sense, among whom (namely, those who shall be found to have believed) you, too, shall be; "because our testimony unto (so the Greek for 'among') you was believed" (and was not rejected as by those "who obey not the Gospel," Th2 1:8). The early preaching of the Gospel was not abstract discussions, but a testimony to facts and truths experimentally known (Luk 24:48; Act 1:8). Faith is defined by BISHOP PEARSON as "an assent unto truths, credible upon the testimony of God, delivered unto us by the apostles and prophets" (originally delivering their testimony orally, but now in their writings). "Glorified in His saints" reminds us that holiness is glory in the bud; glory is holiness manifested.”
Source
Modern · 1953 →

The in-app commentary runs from the Fathers to the early-modern record, then stops — that's where the public-domain sources end, not where the reading does. For the modern reading, follow the sources directly.