Interlinear view shows the original Hebrew/Greek text with word-by-word translation (KJV).
1
Παῦλος Paul καὶ and Σιλουανὸς Silas/Silvanus καὶ and Τιμόθεος Timothy τῇ the/this/who ἐκκλησίᾳ assembly Θεσσαλονικέων Thessalonian ἐν in/on/among θεῷ God πατρὶ father καὶ and κυρίῳ lord Ἰησοῦ Jesus/Joshua Χριστῷ· Christ χάρις grace ὑμῖν you καὶ and εἰρήνη peace ἀπὸ away from θεοῦ God πατρὸς father ἡμῶν I/we καὶ and κυρίου lord Ἰησοῦ Jesus/Joshua Χριστοῦ. Christ
2
Εὐχαριστοῦμεν thank τῷ the/this/who θεῷ God πάντοτε always περὶ about πάντων all ὑμῶν you μνείαν remembrance ὑμῶν you ποιούμενοι do/make ἐπὶ upon/to/against τῶν the/this/who προσευχῶν prayer ἡμῶν, I/we
3
μνημονεύοντες remember ὑμῶν you τοῦ the/this/who ἔργου work τῆς the/this/who πίστεως faith καὶ and τοῦ the/this/who κόπου labor τῆς the/this/who ἀγάπης love καὶ and τῆς the/this/who ὑπομονῆς perseverance ἀδιαλείπτως unceasingly τῆς the/this/who ἐλπίδος hope τοῦ the/this/who κυρίου lord ἡμῶν I/we Ἰησοῦ Jesus/Joshua Χριστοῦ Christ ἔμπροσθεν before τοῦ the/this/who θεοῦ God καὶ and πατρὸς father ἡμῶν· I/we
4
εἰδότες, perceive ἀδελφοὶ brother ἠγαπημένοι love ὑπὸ by/under θεοῦ, God τὴν the/this/who ἐκλογὴν selecting ὑμῶν· you
5
ὅτι that/since τὸ the/this/who εὐαγγέλιον gospel ἡμῶν I/we οὐκ no ἐγενήθη be εἰς toward ὑμᾶς you ἐν in/on/among λόγῳ word μόνον alone ἀλλὰ but καὶ and ἐν in/on/among δυνάμει power καὶ and ἐν in/on/among πνεύματι spirit/breath ἁγίῳ holy καὶ and ἐν in/on/among πληροφορίᾳ assurance