1Jn 1:7-9 (King James)

⁷ But if we walk in the light, as he is in the light, we have fellowship one with another, and the blood of Jesus Christ his Son cleanseth us from all sin.
⁸ If we say that we have no sin, we deceive ourselves, and the truth is not in us.
⁹ If we confess our sins, he is faithful and just to forgive us our sins, and to cleanse us from all unrighteousness.

1Jn 1:7-9 (Stephanus 1550)

⁷ ἐὰν δὲ ἐν τῷ φωτὶ περιπατῶμεν, ὡς αὐτός ἐστιν ἐν τῷ φωτὶ, κοινωνίαν ἔχομεν μετ᾽ ἀλλήλων, καὶ τὸ αἷμα ἰησοῦ χριστοῦ τοῦ υἱοῦ αὐτοῦ καθαρίζει ἡμᾶς ἀπὸ πάσης ἁμαρτίας
⁸ ἐὰν εἴπωμεν ὅτι ἁμαρτίαν οὐκ ἔχομεν, ἑαυτοὺς πλανῶμεν, καὶ ἡ ἀλήθεια οὐκ ἔστιν ἐν ἡμῖν
⁹ ἐὰν ὁμολογῶμεν τὰς ἁμαρτίας ἡμῶν, πιστός ἐστιν καὶ δίκαιος ἵνα ἀφῇ ἡμῖν τὰς ἁμαρτίας, καὶ καθαρίσῃ ἡμᾶς ἀπὸ πάσης ἀδικίας