Sola Scriptura ??
5 because of the hope reserved for you in heaven. Of this you have already heard through the word of truth, the gospel, 6 that has come to you. Just as in the whole world it is bearing fruit and growing, so also among you, from the day you heard it and came to know the grace of God in truth, 7 as you learned it from* Epaphras* our beloved fellow slave, who is a trustworthy minister of Christ on your behalf
23 provided that you persevere in the faith, firmly grounded, stable, and not shifting from the hope of the gospel that you heard, which has been preached to every creature under heaven, of which I, Paul, am a minister.
28 It is he whom we proclaim, admonishing everyone and teaching everyone with all wisdom, that we may present everyone perfect in Christ.
7 rooted in him and built upon him and established in the faith as you were taught*,* abounding in thanksgiving.
15 Give greetings to the brothers in Laodicea and to Nympha and to the church in her house. 16 And when this letter is read before you, have it read also in the church of the Laodiceans, and you yourselves read the one from Laodicea.
1 Thessalonians 1:8
8 For from you the word of the Lord has sounded forth not only in Macedonia and (in) Achaia, but in every place your faith in God has gone forth, so that we have no need to say anything.
1 Thessalonians 2:2-4
2 Rather, after we had suffered and been insolently treated, as you know, in Philippi, we drew courage through our God to speak to you the gospel of God with much struggle. 3 Our *exhortation *was not from delusion or impure motives, nor did it work through deception. 4 But as *we *were judged worthy by God to be entrusted with the gospel, that is how we speak, not as trying to please human beings, but rather God, who judges our hearts. 5 Nor, indeed, did we ever appear with flattering speech, as you know, or with a pretext for greed—God is witness— 6 nor did we seek praise from human beings, either from you or from others, 7 although we were able to impose our weight as apostles of Christ. Rather, we were gentle among you, as a nursing mother cares for her children. 8 With such affection for you, we were determined to share with you not only the gospel of God, but our very selves as well, so dearly beloved had you become to us. 9 You recall, brothers, our toil and drudgery. Working night and day in order not to burden any of you, we proclaimed to you the gospel of God. 10 You are witnesses, and so is God, how devoutly and justly and blamelessly we behaved toward you believers. 11 As you know, we treated each one of you as a father treats his children, 12 exhorting and encouraging you and insisting that you conduct yourselves as worthy of the God who calls you into his kingdom and glory. 13 And for this reason we too give thanks to God unceasingly, that, in receiving the word of God from hearing us, you received not a human word but, as it truly is, the word of God, which is now at work in you who believe
1 Thessalonians 2:14
14 For you, brothers, have become imitators of the churches of God that are in Judea in Christ Jesus.
1 Thessalonians 4:2
2 For you know what instructions we gave you through the Lord Jesus.