The interpretation timeline
1 Thessalonians 1:9 Douay-Rheims

For they themselves relate of us, what manner of entering in we had unto you; and how you turned to God from idols, to serve the living and true God.

A.D. 220 – 1871 7 witnesses 8 excerpts

Patristic

before A.D. 750
220
A.D.
Tertullian Patristic
c. A.D. 150–220
“Whence is proved that they have ever been depicted, out of the volume of the divine Scriptures, as guilty of the crime of idolatry; whereas our "less"-that is, posterior-people, quitting the idols which formerly it used slavishly to serve, has been converted to the same God from whom Israel, as we have above related, had departed. For thus has the "less"-that is, posterior-people overcome the"greater people," while it attains the grace of divine favour, from which Israel has been divorced.”
Source
“For we read: "How ye turned from idols to serve the living and true God, and to wait for His Son from heaven, whom He raised from the dead, even Jesus." And again: "For what is our hope, or joy, or crown of rejoicing? Are not even ye in the presence of our Lord God, Jesus Christ, at His coming? " Likewise: "Before God, even our Father, at the coming of the Lord Jesus Christ, with the whole company of His saints.”
Source
379
A.D.
Basil of Caesarea Patristic
c. A.D. 330–379
“By what means do we become Christians? Through our faith would be the universal answer. And in what way are we saved? Plainly because we were regenerated through the grace given to us in our baptism. How else could we be? And after recognizing that this salvation is established through the Father and the Son and the Holy Spirit, shall we fling away "that form of doctrine" which we received? Would it not rather be grounds for great groaning if we are found now further off from our salvation "than when we first believed," and deny now what we then received?… What if one does not always and everywhere keep to his initial confession and cling to it as a sure protection?… What if one, having been delivered "from the idols," to the "living God," now constitutes himself a "stranger" from the "promises" of God? He fights against his own handwriting, which he put on record when he professed the faith. To me my baptism was the beginning of life and that day of regeneration the first of days. It is plain that the utterance confessed in the grace of adoption is the most honorable of all.”
Source
407
A.D.
John Chrysostom Patristic
A.D. 347–407
“What means, "What manner of entering in we had unto you"? That it was full of dangers, and numberless deaths, but that none of these things troubled you. But as if nothing had happened, so you adhered to us; as if ye had suffered no evil, but had enjoyed infinite good, so you received us after these things. For this was the second entering. They went to Beroea, they were persecuted, and when they came after this they so received them, as though they had been honored by these also, so that they even laid down their lives for them. The expression, "What manner of entering in we had," is complicated, and contains an encomium both of them and of themselves. But he himself has turned this to their advantage. "And how," he says, "ye turned to God from idols, to serve a living and true God"; that is, that ye did it readily, that ye did it with much eagerness, that it did not require much labor to make you. "In order to serve," says he, "a living and true God." Here also he introduced an exhortation, which is the part of one who would make his discourse less offensive.”
Source

Scholastic

c. 1100 – 1500
1272
A.D.
Thomas Aquinas Catholic
1225–1274
“Here the Apostle intends to fortify the Church against tribulations, and first against present tribulations, and this in the first epistle. Second, against future tribulations, in the time of Antichrist, and this in the second epistle. The first is divided into the salutation and the epistolary narration, at "we give thanks." Again, first he touches on the persons who greet; second, the Church greeted; third, the goods wished for. Now it should be noted that, because where we do not offend, we are all equal, therefore, because he is writing to these good people, he makes no mention of his office, but only of the name of humility, which is Paul. Wis. 7:11: "and innumerable honor by her hands." And he adds two others who preached to them along with him, namely Silvanus, who is Silas, and Timothy, whom he circumcised, as is said in Acts 16:3. Now he greets the Church, which is the congregation of the faithful. And this "in God the Father and our Lord Jesus Christ," that is, in the faith of the Trinity, and of the divinity and the humanity of Christ, because in the knowledge of these will be our beatitude. Now he touches on the person of the Father and of the incarnate Son, in whom the Holy Spirit is understood, who is the bond of both. The goods wished for are grace, which is the principle of all goods. 1 Cor. 15:10: "by the grace of God I am what I am." And peace, which is the end, because there is peace then, when the appetite is entirely stilled. Then, when he says "we give thanks," the epistolary narration begins, and first he commends them for their past perseverance; second he admonishes them to act well in the future, in chapter 4, at "as for the rest." Again, first he gives thanks universally for their goods; second he recalls them in particular, at "knowing, brothers," etc. Concerning the first he does two things: first he sets down the giving of thanks; second, its matter, at "mindful." Again, first he gives thanks for them; second he prays for them, at "mention of you." As to the first, then, he states three things which ought to be present in a giving of thanks. First, that it be ordered, namely to God. Therefore he says "we give thanks to God." Ps. 83:12: "the Lord will give grace and glory." James 1:17: "every excellent gift and every perfect gift is from above, descending from the Father of lights." Again, that it be constant, since "always." Again, that it be universal, at "for all of you." Below, 5:18: "in all things give thanks." Then he prays for them, saying "making mention of you," etc., as if to say: whenever I pray, I have you in memory. Rom. ch. 1:9: "without ceasing I make mention of you always in my prayers." Then, when he says "mindful of the work," he sets down the goods for which he gives thanks, namely faith, hope, and charity. 1 Cor. 13:13: "but now there remain faith, hope, charity, these three," etc. He puts faith first, because it is "the substance of things to be hoped for," etc. For "he who comes to God must believe," etc., Heb. ch. 11:1 and 6. But this is not sufficient, unless it has operation and labor. And therefore he says "of the work of your faith, and of labor." James 2:26: "faith without works is dead." Again, because he who fails in laboring for Christ's sake is worth nothing. Luke 8:13: "they believe for a time, and in time of temptation fall away." Therefore he says "of work and of labor," as if to say: mindful of your faith working and laboring. Again, "of charity," in whose works they abounded. Below, 4:9: "the charity of brotherhood," etc. Again, "of hope," which makes one patiently endure adversities. Rom. 12:12: "rejoicing in hope, patient in tribulation." And "of endurance," which hope produces. James 5:11: "you have heard of the patience of Job," etc. "Of the hope," I say, "of our Lord," that is, which we have concerning Christ, or which Christ gave to us. 1 Pet. 1:3: "he has regenerated us unto a living hope," etc. This hope is "before God," not before the eyes of men. Matt. 6:1: "take heed that you do not do your righteousness before men," etc. Heb. 6:19: "which we have as a sure anchor of the soul," etc. For hope in the old testament did not lead to God. Then, when he says "knowing, brothers," he recalls their goods in particular, and he first commends them, that they devoutly and readily received the preaching, tribulation notwithstanding; second, that on account of tribulation they did not withdraw from it, in chapter 2, at "for you yourselves know." Again the first part is divided into two: first he shows what sort this preaching was; second, how it was received by them, at "and you became imitators." Concerning the first he does three things: first he shows what he knew concerning them; second, the manner of his preaching, at "because the Gospel"; third, what they themselves knew about the apostle, at "as you know." He says therefore, "O brothers beloved of God" — not only in common, insofar as he gives being to nature, but insofar as you are specially called to eternal goods. Mal. 1:2: "Jacob I have loved, but Esau I have hated," etc. Deut. 33:3: "he has loved the peoples," etc. "Your election" — as if to say: I know with certainty that you are elect, because you did not merit this election, but you have been freely chosen by God. And this I know, because God gave me a great proof in preaching, namely that those to whom I speak are chosen by God, that is, when God gives them the grace of fruitfully hearing the word preached to them, or gives me the grace of abundantly preaching to them. Against this seems to be what is said in Ezek. 3:26: "and I will make your tongue cleave to your palate," etc. Therefore he first recalls how powerfully he preached to them, second he adduces their testimony, at "as you know." Powerfully indeed, because it was not in loftiness of speech, but in power. 1 Cor. 2:4: "my speech and my preaching were not in the persuasive words of human wisdom, but in the demonstration of the Spirit and of power." 1 Cor. 4:20: "for the kingdom of God is not in speech, but in power." Or it can be referred to the confirmation of the preaching, or to the manner of preaching. If to the first: thus my preaching was confirmed among you, not by arguments, but by the power of miracles. Whence it is said in Mark, the last chapter: "the Lord working together, and confirming the word with signs that followed." Again, in the giving of the Holy Spirit; whence he says, "and in the Holy Spirit." Acts ch. 10:44: "while Peter was still speaking these words, the Holy Spirit fell upon all who were hearing the word," etc. Heb. 2:4: "God bearing witness with signs and wonders and various powers and distributions of the Holy Spirit." "And in fullness," etc. And he adds this, lest they believe they had received less than the Jews; as if to say: the Holy Spirit is not a respecter of persons, but was present among you in that same fullness as among the Jews. Acts 2:4: "they were all filled with the Holy Spirit," etc. But if to the second, thus "in power," that is, showing you a virtuous life. Acts 1:1: "the Lord began to do and to teach." "And in the Holy Spirit," namely suggesting. Matt. 10:20: "it is not you who speak," etc. "In much fullness," namely because I instructed you concerning all things necessary for the faith. Now he adduces their testimony to this, when he says "as you yourselves know," etc., that is, what sort of gifts and powers we showed among you. 2 Cor. 5:11: "but I hope that we are manifest in your consciences." Then, when he says "and you became imitators," etc., he shows how they powerfully received his preaching, and did not withdraw on account of tribulations. And first he shows their virtue in this, that they imitated others; second, that they made themselves imitable to others, at "so that you became." Concerning the first he does two things: first he shows whom they imitated; second, in what things they imitated, at "receiving." Concerning the first he says that they imitated those whom they ought, namely their prelates. And therefore he says "having become imitators of us," etc. Phil. 3:17: "be imitators of me, brothers." But they imitated, not in that in which we fail as men, but in that in which we imitate Christ. Whence also it is said, 1 Cor. 4:16: "be imitators of me, as I also am of Christ," that is, in that in which I have imitated Christ, namely in the patient endurance of tribulation. Matt. 16:24: "if anyone wishes to come after me, let him deny himself, and take up his cross, and follow me." 1 Pet. ch. 2:21: "Christ suffered for us, leaving you an example, that you should follow his steps." And therefore he says "in much tribulation, with joy," that is, although much tribulation was threatening on account of the word, nevertheless you received it with joy. James 1:2: "count it all joy, my brothers, when you fall into various trials," etc. Acts 5:41: "the apostles went rejoicing from the presence of the Council, because they had been counted worthy to suffer reproach for the name of Jesus." "With joy," I say, "of the Holy Spirit," not of any other kind, which is the love of God, which produces joy in those who suffer for Christ's sake, because they love him. Song 8:7: "if a man should give all the substance of his house for love, he will despise it as nothing." And thus you are imitators of us, namely in that you are imitable to others. Whence he says "so that you became," etc. Concerning which he does three things: first he shows them to be imitable; second, how their fame was spread abroad, at "for from you has been spread abroad"; third, how they were praised by all peoples, at "for they themselves declare." He says therefore: you have imitated us so perfectly, that you have become a pattern, that is, an example of life, not only in your own land, but in others. Matt. 5:16: "thus let your light shine before men, that they may see your works," etc. But you have become a pattern to believers, to whom your faith has become known, to which your goodness has been added. "For from you the word of the Lord has been spread abroad," that is, of preaching the Lord, that is, your fame has been diffused, not only in Macedonia and Achaia, which are near to you, but your faith toward God, made perfect, that is, which God accepts, and which joins you to God, has also been spread abroad in every place. Rom. 1:8: "your faith is proclaimed in the whole world," etc. And a sign of this is that "it is not necessary," etc. For it belongs to a good preacher to bring forward the good deeds of others as an example. 2 Cor. 9:2: "for your zeal has provoked very many." Then, when he says "for they themselves," etc., he sets down their praise, by which they were praised by others, since "they declare concerning us," etc. Prov., last chapter: "let her works praise her in the gates." Now they praise in you my preaching and your conversion. They declare, therefore, what sort of entrance we had among you, namely with great difficulty and in tribulations. They also praise your conversion. And he shows how, from what, and to what they were converted. As to the first he says "and how you were converted to God," that is, how easily, and how perfectly. Joel 2:12: "turn to me with all your heart," etc. Ecclus. 5:8: "delay not to be converted to the Lord, and put it not off from day to day." As to the second he says "from idols." 1 Cor. 12:2: "you know that when you were Gentiles, you went to mute idols, however you were led." As to the third he says "to serve God," namely with the service of latria, not to a creature, but to God. Against which it is said, Rom. 1:25: "they served the creature rather than the creator," etc. And he says "living," so as to exclude the worship of idolatry, because the idolaters worshipped certain dead men, whose souls they said had been deified, as Romulus and Hercules. And therefore he says "living." Deut. 32:40: "I live forever." Again, because the Platonists thought that certain separated substances were gods by participation, it is said "true," not by participation in the divine nature, but because those serving him are to be rewarded. Therefore, because you are thus, it remains that you await a reward. Whence he says "and to await his Son," namely of God, descending from the heavens. Luke 12:36: "and you like men awaiting their lord, when he shall return from the wedding." Is. 30:18: "blessed are all who await him." Now those are they who are girded about the loins. Now we await two things: namely, the resurrection, that we may be conformed to him. Whence he says "whom he raised from the dead, Jesus." Rom. ch. 8:11: "he who raised Jesus Christ from the dead will also give life to your mortal bodies," etc. Phil. 3:21: "he will reform the body of our lowliness, conformed to the body of his glory." Again, to be freed from the future punishment, which threatens the guilty. Now from the cause of punishment, namely from sin, we are freed through Christ. Whence he says "who has delivered us," etc. Apoc. 6:16: "hide yourselves from the face of him who sits upon the throne, and from the wrath of the Lamb," etc. From this wrath no one can free us except Christ. Matt. 3:7: "who will show you to flee from the wrath to come?"”

Post-Reformation

c. 1650 – 1900
1771
A.D.
John Gill Reformed
1697–1771
“For they themselves show of us,.... Either the above reports of the preaching of the Gospel to the Thessalonians, and of their faith in God; or rather the persons to whom these reports were brought, openly and publicly, and largely declared concerning the apostles, what manner of entering in we had unto you; under what difficulties they laboured, what contention they had with the unbelieving Jews, what reproaches were cast upon them, and what persecutions they endured when they first entered their city and synagogue, and preached the Gospel to them; and in what manner they did preach it, with what boldness, sincerity, uprightness and affection, and without flattery, covetousness, and vain glory; and with what power it came to them, and what success attended it, and how readily, cheerfully, and reverently both they and that were received by them: and how ye turned to God from idols; immediately and at once, upon the preaching of the Gospel to them, being first turned by the powerful and efficacious grace of God; for the first work of conversion is God's work; then they themselves, under the influence of the same grace, turned to the one God, from their internal idols, their sins and lusts, and from their external idols, their many false and fictitious deities: for the Thessalonians before the Gospel came among them were idolaters; here the "Dii Cabiri", the great and chief gods of the Gentiles, were worshipped; as Jupiter and Bacchus, Ceres and Proserpina, Pluto and Mercury, Castor and Pollux, and Esculapius; these the Macedonians, and particularly the Thessalonians, worshipped with great devotion and reverence (d): but now they turned from them and forsook them, to serve the living and true God; who is called the living God, because he has life in and of himself, and is the fountain of life to others; from whom all living creatures have their life, and are supported in it by him; and in opposition to the above idols, which were inanimate things made of wood or metal, and were images of men that had been dead long ago: and the "true" God, because he is truth itself, and cannot lie, who faithfully performs all his promises, and is to be worshipped in spirit and in truth; and in opposition to the nominal and fictitious deities of the Gentiles, which were only in name, not in truth and reality, or by nature gods: now though these Thessalonians had before done service to these idols, they now turned from them to serve the one living and true God; not only externally, by embracing and professing his Gospel, submitting to his ordinances, and walking according to the rules prescribed by him; but also internally, in the exercise of faith, hope, love, and every other grace. (d) Gutherlothus de mysteriis Deor. Cabirorum, c. 15. p. 94, 95. Jul. Firmicus. de errore prof. relig. p. 18.”
Source
1832
A.D.
Adam Clarke Methodist
1762–1832
“How ye turned to God from idols - This could not be spoken either of the Jews or of the devout persons, but of the heathen Greeks, and of such it appears that the majority of the Church was formed. See what is said on this subject in the preface to this epistle. To serve the living and true God - The living God; in opposition to the idols, which were either inanimate stocks or stones, or the representations of dead men. The true God - In opposition to the whole system of idolatry, which was false in the objects of its adoration, false in its pretensions, false in its promises, and false in all its prospects.”
Source
1871
A.D.
1871
“Strictly there should follow, "For they themselves show of you," &c.; but, instead, he substitutes that which was the instrumental cause of the Thessalonians' conversion and faith, "for they themselves show of us what manner of entering in we had unto you"; compare Th1 1:5, which corresponds to this former clause, as Th1 1:6 corresponds to the latter clause. "And how ye turned from idols to serve the living . . . God," &c. Instead of our having "to speak any thing" to them (in Macedonia and Achaia) in your praise (Th1 1:8), "they themselves (have the start of us in speaking of you, and) announce concerning (so the Greek of 'show of' means) us, what manner of (how effectual an) entrance we had unto you" (Th1 1:5; Th1 2:1). the living and true God--as opposed to the dead and false gods from which they had "turned." In the English Version reading, Act 17:4, "of the devout Greeks a great multitude," no mention is made, as here, of the conversion of idolatrous Gentiles at Thessalonica; but the reading of some of the oldest manuscripts and Vulgate singularly coincides with the statement here: "Of the devout AND of Greeks (namely, idolaters) a great multitude"; so in Act 17:17, "the devout persons," that is, Gentile proselytes to Judaism, form a separate class. PALEY and LACHMANN, by distinct lines of argument, support the "AND."”
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.