Interlinear view shows the original Hebrew/Greek text with word-by-word translation (KJV).
1
Ὁ the/this/who πρεσβύτερος elder ἐκλεκτῇ select κυρίᾳ lady καὶ and τοῖς the/this/who τέκνοις child αὐτῆς he/she/it/self οὓς which ἐγὼ I/we ἀγαπῶ love ἐν in/on/among ἀληθείᾳ, truth καὶ and οὐκ no ἐγὼ I/we μόνος, alone ἀλλὰ but καὶ and πάντες all οἱ the/this/who ἐγνωκότες know τὴν the/this/who ἀλήθειαν, truth
2
διὰ through/beca… τὴν the/this/who ἀλήθειαν truth τὴν the/this/who μένουσαν stay ἐν in/on/among ἡμῖν, I/we καὶ and μεθ᾽ with/after ἡμῶν I/we ἔσται be εἰς toward τὸν the/this/who αἰῶνα· age
3
ἔσται be μεθ᾽ with/after ἡμῶν I/we χάρις grace ἔλεος mercy εἰρήνη peace παρὰ from with θεοῦ God πατρὸς father καὶ and παρὰ from with κυρίου lord Ἰησοῦ Jesus/Joshua Χριστοῦ Christ τοῦ the/this/who υἱοῦ son τοῦ the/this/who πατρὸς father ἐν in/on/among ἀληθείᾳ truth καὶ and ἀγάπῃ. love
4
Ἐχάρην rejoice λίαν greatly ὅτι that/since εὕρηκα find/meet ἐκ out from τῶν the/this/who τέκνων child σου you περιπατοῦντας walk ἐν in/on/among ἀληθείᾳ truth καθὼς as/just as ἐντολὴν commandment ἐλάβομεν take παρὰ from with τοῦ the/this/who πατρός. father
5
καὶ and νῦν now ἐρωτῶ ask σε, you κυρία, lady οὐχ no ὡς which/how ἐντολὴν commandment καινὴν new γράφων write σοι, you ἀλλ᾽ but ἣν which εἴχομεν have/be ἀπ᾽ away from ἀρχῆς, beginning ἵνα in order tha… ἀγαπῶμεν love ἀλλήλους. one another
6
καὶ and αὕτη this/he/she/it ἐστὶν be ἡ the/this/who ἀγάπη love ἵνα in order tha… περιπατῶμεν walk κατὰ according to τὰς the/this/who ἐντολὰς commandment αὐτοῦ. he/she/it/self αὕτη this/he/she/it ἡ the/this/who ἐντολή commandment ἐστιν be καθὼς as/just as ἠκούσατε hear ἀπ᾽ away from ἀρχῆς, beginning ἵνα in order tha… ἐν in/on/among αὐτῇ he/she/it/self περιπατῆτε· walk
7
ὅτι that/since πολλοὶ much πλάνοι deceiving ἐξῆλθον go out εἰς toward τὸν the/this/who κόσμον, world οἱ the/this/who μὴ not ὁμολογοῦντες confess/profess Ἰησοῦν Jesus/Joshua Χριστὸν Christ ἐρχόμενον come/go ἐν in/on/among σαρκί· flesh οὗτός this/he/she/it ἐστιν be ὁ the/this/who πλάνος deceiving καὶ and ὁ the/this/who ἀντίχριστος. antichrist
8
βλέπετε see ἑαυτοὺς my/your/him-… ἵνα in order tha… μὴ not ἀπολέσητε destroy ἃ which εἰργασάμεθα, work ἀλλὰ but μισθὸν wage πλήρη full ἀπολάβητε. get back
9
πᾶς all ὁ the/this/who προάγων go/bring before καὶ and μὴ not μένων stay ἐν in/on/among τῇ the/this/who διδαχῇ teaching τοῦ the/this/who Χριστοῦ Christ θεὸν God οὐκ no ἔχει· have/be ὁ the/this/who μένων stay ἐν in/on/among τῇ the/this/who διδαχῇ teaching τοῦ the/this/who Χριστοῦ, Christ οὗτος this/he/she/it καὶ and τὸν the/this/who πατέρα father καὶ and τὸν the/this/who υἱὸν son ἔχει. have/be
10
εἴ if τις one ἔρχεται come/go