Parallel
1 John 1:6
Nestle 1904 Greek New Testament · Berean Standard Bible
Ἐὰν εἴπωμεν ὅτι κοινωνίαν ἔχομεν μετ’ αὐτοῦ καὶ ἐν τῷ σκότει περιπατῶμεν ψευδόμεθα καὶ οὐ ποιοῦμεν τὴν ἀλήθειαν
If we say we have fellowship with Him yet walk in the darkness, we lie and do not practice the truth.