1Jn 3 (King James)

   ¹ Behold, what manner of love the Father hath bestowed upon us, that we should be called the sons of God: therefore the world knoweth us not, because it knew him not. ² Beloved, now are we the sons of God, and it doth not yet appear what we shall be: but we know that, when he shall appear, we shall be like him; for we shall see him as he is. ³ And every man that hath this hope in him purifieth himself, even as he is pure.
   ⁴ Whosoever committeth sin transgresseth also the law: for sin is the transgression of the law. ⁵ And ye know that he was manifested to take away our sins; and in him is no sin. ⁶ Whosoever abideth in him sinneth not: whosoever sinneth hath not seen him, neither known him. ⁷ Little children, let no man deceive you: he that doeth righteousness is righteous, even as he is righteous. ⁸ He that committeth sin is of the devil; for the devil sinneth from the beginning. For this purpose the Son of God was manifested, that he might destroy the works of the devil. ⁹ Whosoever is born of God doth not commit sin; for his seed remaineth in him: and he cannot sin, because he is born of God. ¹⁰ In this the children of God are manifest, and the children of the devil: whosoever doeth not righteousness is not of God, neither he that loveth not his brother.
   ¹¹ For this is the message that ye heard from the beginning, that we should love one another. ¹² Not as Cain, who was of that wicked one, and slew his brother. And wherefore slew he him? Because his own works were evil, and his brother's righteous. ¹³ Marvel not, my brethren, if the world hate you.
   ¹⁴ We know that we have passed from death unto life, because we love the brethren. He that loveth not his brother abideth in death. ¹⁵ Whosoever hateth his brother is a murderer: and ye know that no murderer hath eternal life abiding in him. ¹⁶ Hereby perceive we the love of God, because he laid down his life for us: and we ought to lay down our lives for the brethren. ¹⁷ But whoso hath this world's good, and seeth his brother have need, and shutteth up his bowels of compassion from him, how dwelleth the love of God in him? ¹⁸ My little children, let us not love in word, neither in tongue; but in deed and in truth. ¹⁹ And hereby we know that we are of the truth, and shall assure our hearts before him.
   ²⁰ For if our heart condemn us, God is greater than our heart, and knoweth all things. ²¹ Beloved, if our heart condemn us not, then have we confidence toward God. ²² And whatsoever we ask, we receive of him, because we keep his commandments, and do those things that are pleasing in his sight.
   ²³ And this is his commandment, That we should believe on the name of his Son Jesus Christ, and love one another, as he gave us commandment. ²⁴ And he that keepeth his commandments dwelleth in him, and he in him. And hereby we know that he abideth in us, by the Spirit which he hath given us.

1Jn 3 (Stephanus 1550)

   ¹ ἴδετε ποταπὴν ἀγάπην δέδωκεν ἡμῖν ὁ πατὴρ, ἵνα τέκνα θεοῦ κληθῶμεν διὰ τοῦτο ὁ κόσμος οὐ γινώσκει ἡμᾶς, ὅτι οὐκ ἔγνω αὐτόν ² ἀγαπητοὶ, νῦν τέκνα θεοῦ ἐσμεν, καὶ οὔπω ἐφανερώθη τί ἐσόμεθα οἴδαμεν δὲ ὅτι ἐὰν φανερωθῇ, ὅμοιοι αὐτῷ ἐσόμεθα, ὅτι ὀψόμεθα αὐτὸν καθώς ἐστιν ³ καὶ πᾶς ὁ ἔχων τὴν ἐλπίδα ταύτην ἐπ᾽ αὐτῷ, ἁγνίζει ἑαυτὸν, καθὼς ἐκεῖνος ἁγνός ἐστιν ⁴ πᾶς ὁ ποιῶν τὴν ἁμαρτίαν, καὶ τὴν ἀνομίαν ποιεῖ καὶ ἡ ἁμαρτία ἐστὶν ἡ ἀνομία ⁵ καὶ οἴδατε ὅτι ἐκεῖνος ἐφανερώθη, ἵνα τὰς ἁμαρτίας ἡμῶν ἄρῃ, καὶ ἁμαρτία ἐν αὐτῷ οὐκ ἔστιν ⁶ πᾶς ὁ ἐν αὐτῷ μένων οὐχ ἁμαρτάνει πᾶς ὁ ἁμαρτάνων οὐχ ἑώρακεν αὐτὸν, οὐδὲ ἔγνωκεν αὐτόν ⁷ τεκνία, μηδεὶς πλανάτω ὑμᾶς ὁ ποιῶν τὴν δικαιοσύνην, δίκαιός ἐστιν, καθὼς ἐκεῖνος δίκαιός ἐστιν ⁸ ὁ ποιῶν τὴν ἁμαρτίαν ἐκ τοῦ διαβόλου ἐστὶν, ὅτι ἀπ᾽ ἀρχῆς ὁ διάβολος ἁμαρτάνει Εἰς τοῦτο ἐφανερώθη ὁ υἱὸς τοῦ θεοῦ, ἵνα λύσῃ τὰ ἔργα τοῦ διαβόλου ⁹ πᾶς ὁ γεγεννημένος ἐκ τοῦ θεοῦ, ἁμαρτίαν οὐ ποιεῖ, ὅτι σπέρμα αὐτοῦ ἐν αὐτῷ μένει καὶ οὐ δύναται ἁμαρτάνειν, ὅτι ἐκ τοῦ θεοῦ γεγέννηται ¹⁰ ἐν τούτῳ φανερά ἐστιν τὰ τέκνα τοῦ θεοῦ καὶ τὰ τέκνα τοῦ διαβόλου πᾶς ὁ μὴ ποιῶν δικαιοσύνην, οὐκ ἔστιν ἐκ τοῦ θεοῦ, καὶ ὁ μὴ ἀγαπῶν τὸν ἀδελφὸν αὑτοῦ ¹¹ ὄτι αὕτη ἐστὶν ἡ ἀγγελία ἣν ἠκούσατε ἀπ᾽ ἀρχῆς, ἵνα ἀγαπῶμεν ἀλλήλους ¹² οὐ καθὼς κάϊν ἐκ τοῦ πονηροῦ ἦν, καὶ ἔσφαξεν τὸν ἀδελφὸν αὑτοῦ καὶ χάριν τίνος ἔσφαξεν αὐτόν ὅτι τὰ ἔργα αὐτοῦ πονηρὰ ἦν, τὰ δὲ τοῦ ἀδελφοῦ αὐτοῦ δίκαια ¹³ μὴ θαυμάζετε ἀδελφοί μου, εἰ μισεῖ ὑμᾶς ὁ κόσμος ¹⁴ ἡμεῖς οἴδαμεν ὅτι μεταβεβήκαμεν ἐκ τοῦ θανάτου εἰς τὴν ζωὴν, ὅτι ἀγαπῶμεν τοὺς ἀδελφούς ὁ μὴ ἀγαπῶν τὸν ἀδελφὸν, μένει ἐν τῷ θανάτῳ ¹⁵ πᾶς ὁ μισῶν τὸν ἀδελφὸν αὑτοῦ, ἀνθρωποκτόνος ἐστίν καὶ οἴδατε ὅτι πᾶς ἀνθρωποκτόνος οὐκ ἔχει ζωὴν αἰώνιον ἐν αὐτῷ μένουσαν ¹⁶ ἐν τούτῳ ἐγνώκαμεν τὴν ἀγάπην, ὅτι ἐκεῖνος ὑπὲρ ἡμῶν τὴν ψυχὴν αὑτοῦ ἔθηκεν καὶ ἡμεῖς ὀφείλομεν ὑπὲρ τῶν ἀδελφῶν τὰς ψυχὰς τιθέναι ¹⁷ ὅς δ᾽ ἂν ἔχῃ τὸν βίον τοῦ κόσμου, καὶ θεωρῇ τὸν ἀδελφὸν αὑτοῦ χρείαν ἔχοντα, καὶ κλείσῃ τὰ σπλάγχνα αὑτοῦ ἀπ᾽ αὐτοῦ, πῶς ἡ ἀγάπη τοῦ θεοῦ μένει ἐν αὐτῷ ¹⁸ τεκνία μου, μὴ ἀγαπῶμεν λόγῳ, μηδὲ γλώσσῃ, ἀλλ᾽ ἔργῳ καὶ ἀληθείᾳ ¹⁹ καὶ ἐν τούτῳ γινώσκομεν ὅτι ἐκ τῆς ἀληθείας ἐσμὲν, καὶ ἔμπροσθεν αὐτοῦ πείσομεν τὰς καρδίας ἡμῶν ²⁰ ὅτι ἐὰν καταγινώσκῃ ἡμῶν ἡ καρδία, ὅτι μείζων ἐστὶν ὁ θεὸς τῆς καρδίας ἡμῶν, καὶ γινώσκει πάντα ²¹ ἀγαπητοὶ, ἐὰν ἡ καρδία ἡμῶν μὴ καταγινώσκῃ ἡμῶν, παῤῥησίαν ἔχομεν πρὸς τὸν θεόν ²² καὶ ὃ ἐὰν αἰτῶμεν, λαμβάνομεν παρ᾽ αὐτοῦ, ὅτι τὰς ἐντολὰς αὐτοῦ τηροῦμεν, καὶ τὰ ἀρεστὰ ἐνώπιον αὐτοῦ ποιοῦμεν ²³ καὶ αὕτη ἐστὶν ἡ ἐντολὴ αὐτοῦ, ἵνα πιστεύσωμεν τῷ ὀνόματι τοῦ υἱοῦ αὐτοῦ ἰησοῦ χριστοῦ, καὶ ἀγαπῶμεν ἀλλήλους, καθὼς ἔδωκεν ἐντολὴν ἡμῖν ²⁴ καὶ ὁ τηρῶν τὰς ἐντολὰς αὐτοῦ, ἐν αὐτῷ μένει, καὶ αὐτὸς ἐν αὐτῷ καὶ ἐν τούτῳ γινώσκομεν ὅτι μένει ἐν ἡμῖν, ἐκ τοῦ πνεύματος οὗ ἡμῖν ἔδωκεν