2. ἐν τούτῳ γινώσκομεν ὅτι ἀγαπῶμεν τὰ τέκνα τοῦ θεοῦ, ὅταν τὸν θεὸν ἀγαπῶμεν καὶ τὰς ἐντολὰς αὐτοῦ ⸀ποιῶμεν·
3. αὕτη γάρ ἐστιν ἡ ἀγάπη τοῦ θεοῦ ἵνα τὰς ἐντολὰς αὐτοῦ τηρῶμεν, καὶ αἱ ἐντολαὶ αὐτοῦ βαρεῖαι οὐκ εἰσίν,
4. ὅτι πᾶν τὸ γεγεννημένον ἐκ τοῦ θεοῦ νικᾷ τὸν κόσμον. καὶ αὕτη ἐστὶν ἡ νίκη ἡ νικήσασα τὸν κόσμον, ἡ πίστις ἡμῶν·
5. τίς ⸂δέ ἐστιν⸃ ὁ νικῶν τὸν κόσμον εἰ μὴ ὁ πιστεύων ὅτι Ἰησοῦς ἐστιν ὁ υἱὸς τοῦ θεοῦ;
6. Οὗτός ἐστιν ὁ ἐλθὼν δι’ ὕδατος καὶ αἵματος, Ἰησοῦς Χριστός· οὐκ ἐν τῷ ὕδατι μόνον ἀλλ’ ἐν τῷ ὕδατι καὶ ⸀ἐν τῷ αἵματι· καὶ τὸ πνεῦμά ἐστιν τὸ μαρτυροῦν, ὅτι τὸ πνεῦμά ἐστιν ἡ ἀλήθεια.
7. ὅτι τρεῖς εἰσιν οἱ μαρτυροῦντες,
8. τὸ πνεῦμα καὶ τὸ ὕδωρ καὶ τὸ αἷμα, καὶ οἱ τρεῖς εἰς τὸ ἕν εἰσιν.
9. εἰ τὴν μαρτυρίαν τῶν ἀνθρώπων λαμβάνομεν, ἡ μαρτυρία τοῦ θεοῦ μείζων ἐστίν, ὅτι αὕτη ἐστὶν ἡ μαρτυρία τοῦ θεοῦ ⸀ὅτι μεμαρτύρηκεν περὶ τοῦ υἱοῦ αὐτοῦ.