19. ῾Ημεῖς ἀγαπῶμεν αὐτόν, ὅτι αὐτὸς πρῶτος ἠγάπησεν ἡμᾶς.
20. ἐάν τις εἴπῃ ὅτι ἀγαπῶ τὸν Θεόν, καὶ τὸν ἀδελφὸν αὐτοῦ μισῇ, ψεύστης ἐστίν· ὁ γὰρ μὴ ἀγαπῶν τὸν ἀδελφὸν ὃν ἐώρακε, τὸν Θεὸν ὃν οὐχ ἑώρακε πῶς δύναται ἀγαπᾶν;
21. καὶ ταύτην τὴν ἐντολὴν ἔχομεν ἀπ᾿ αὐτοῦ, ἵνα ὁ ἀγαπῶν τὸν Θεὸν ἀγαπᾷ καὶ τὸν ἀδελφὸν αὐτοῦ.