1 John 2:4
ὁ λέγων ὅτι ἔγνωκα αὐτόν, καὶ τὰς ἐντολὰς αὐτοῦ μὴ τηρῶν, ψεύστης ἐστίν, καὶ ἐν τούτῳ ἡ ἀλήθεια οὐκ ἔστιν·
Tischendorf's 8th edition GNT
In The King James Version
He that saith, I know him, and keepeth not his commandments, is a liar, and the truth is not in him.
In Context
3καὶ ἐν τούτῳ γινώσκομεν ὅτι ἐγνώκαμεν αὐτόν, ἐὰν τὰς ἐντολὰς αὐτοῦ τηρῶμεν.
Cross References
Titus 1:16θεὸν ὁμολογοῦσιν εἰδέναι, τοῖς δὲ ἔργοις ἀρνοῦνται, βδελυκτοὶ ὄντες καὶ ἀπειθεῖς καὶ πρὸς πᾶν ἔργον ἀγαθὸν ἀδόκιμοι.
1 John 1:6ἐὰν εἴπωμεν ὅτι κοινωνίαν ἔχομεν μετ’ αὐτοῦ καὶ ἐν τῷ σκότει περιπατῶμεν, ψευδόμεθα καὶ οὐ ποιοῦμεν τὴν ἀλήθειαν·
1 John 1:10ἐὰν εἴπωμεν ὅτι οὐχ ἡμαρτήκαμεν, ψεύστην ποιοῦμεν αὐτὸν καὶ ὁ λόγος αὐτοῦ οὐκ ἔστιν ἐν ἡμῖν.
1 John 4:20ἐάν τις εἴπῃ ὅτι ἀγαπῶ τὸν θεόν, καὶ τὸν ἀδελφὸν αὐτοῦ μισῇ, Ψεύστης ἐστίν· ὁ γὰρ μὴ ἀγαπῶν τὸν ἀδελφὸν αὐτοῦ ὃν ἑώρακεν, τὸν θεὸν ὃν οὐχ ἑώρακεν οὐ δύναται ἀγαπᾶν.