Interlinear view shows the original Hebrew/Greek text with word-by-word translation (KJV).
1
ἴδετε perceive ποταπὴν of what kind? ἀγάπην love δέδωκεν give ἡμῖν I/we ὁ the/this/who πατήρ, father ἵνα in order tha… τέκνα child θεοῦ God κληθῶμεν call διὰ through/beca… τοῦτο this/he/she/it ὁ the/this/who κόσμος world οὐ no γινώσκει know ἡμᾶς, I/we ὅτι that/since οὐκ no ἔγνω know αὐτόν. he/she/it/self
2
Ἀγαπητοί, beloved νῦν now τέκνα child θεοῦ God ἐσμεν, be καὶ and οὔπω not yet ἐφανερώθη manifest τί which? ἐσόμεθα· be οἴδαμεν perceive δὲ but/and ὅτι that/since ἐὰν if φανερωθῇ, manifest ὅμοιοι like αὐτῷ he/she/it/self ἐσόμεθα, be ὅτι that/since ὀψόμεθα see αὐτὸν he/she/it/self καθώς as/just as ἐστιν. be
3
καὶ and πᾶς all ὁ the/this/who ἔχων have/be τὴν the/this/who ἐλπίδα hope ταύτην this/he/she/it ἐπ᾽ upon/to/against αὐτῷ he/she/it/self ἁγνίζει purify ἑαυτὸν my/your/him-… καθὼς as/just as ἐκεῖνος that ἁγνός pure ἐστιν. be
4
Πᾶς all ὁ the/this/who ποιῶν do/make τὴν the/this/who ἁμαρτίαν sin καὶ and τὴν the/this/who ἀνομίαν lawlessness ποιεῖ, do/make καὶ and ἡ the/this/who ἁμαρτία sin ἐστὶν be ἡ the/this/who ἀνομία. lawlessness
5
καὶ and οἴδατε perceive ὅτι that/since ἐκεῖνος that ἐφανερώθη manifest ἵνα in order tha… τὰς the/this/who ἁμαρτίας sin ἡμῶν I/we ἄρῃ, take up καὶ and ἁμαρτία sin ἐν in/on/among αὐτῷ he/she/it/self οὐκ no ἔστιν. be
6
πᾶς all ὁ the/this/who ἐν in/on/among αὐτῷ he/she/it/self μένων stay οὐχ no ἁμαρτάνει· sin πᾶς all ὁ the/this/who ἁμαρτάνων sin οὐχ no ἑώρακεν see αὐτὸν he/she/it/self οὐδὲ and not ἔγνωκεν know αὐτόν. he/she/it/self