Ἰωάννου τοῦ ἀποστόλου ἐπιστολὴ καθολικὴ πρώτη
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Πᾶς ὁ πιστεύων ὅτι Ἰησοῦς ἐστὶν ὁ Χριστός, ἐκ τοῦ Θεοῦ γεγέννηται· καὶ πᾶς ὁ ἀγαπῶν τὸν γεννήσαντα ἀγαπᾷ καὶ τὸν γεγεννημένον ἐξ αὐτοῦ.
ἐν τούτῳ γινώσκομεν ὅτι ἀγαπῶμεν τὰ τέκνα τοῦ Θεοῦ, ὅταν τὸν Θεὸν ἀγαπῶμεν, καὶ τὰς ἐντολὰς αὐτοῦ τηρῶμεν.
αὕτη γάρ ἐστιν ἡ ἀγάπη τοῦ Θεοῦ, ἵνα τὰς ἐντολὰς αὐτοῦ τηρῶμεν· καὶ αἱ ἐντολαὶ αὐτοῦ βαρεῖαι οὐκ εἰσίν.
ὅτι πᾶν τὸ γεγεννημένον ἐκ τοῦ Θεοῦ νικᾷ τὸν κόσμον· καὶ αὕτη ἐστὶν ἡ νίκη ἡ νικήσασα τὸν κόσμον, ἡ πίστις ἡμῶν.
τίς ἐστιν ὁ νικῶν τὸν κόσμον, εἰ μὴ ὁ πιστεύων ὅτι Ἰησοῦς ἐστὶν ὁ Υἱὸς τοῦ Θεοῦ;
οὗτός ἐστιν ὁ ἐλθὼν δι’ ὕδατος καὶ αἵματος, Ἰησοῦς ὁ Χριστός· οὐκ ἐν τῷ ὕδατι μόνον, ἀλλ’ ἐν τῷ ὕδατι καὶ τῷ αἵματι. καὶ τὸ Πνεῦμά ἐστι τὸ μαρτυροῦν, ὅτι τὸ πνεῦμά ἐστιν ἡ ἀλήθεια.
ὅτι τρεῖς εἰσὶν οἱ μαρτυροῦντες ἐν τῷ οὐρανῷ, ὁ Πατήρ, ὁ Λόγος, καὶ τὸ Ἅγιον Πνεῦμα· καὶ οὗτοι οἱ τρεῖς ἕν εἰσι.
καὶ τρεῖς εἰσὶν οἱ μαρτυροῦντες ἐν τῇ γῇ, τὸ Πνεῦμα, καὶ τὸ ὕδωρ, καὶ τὸ αἷμα· καὶ οἱ τρεῖς εἰς τὸ ἕν εἰσιν.