He that committeth sin is of the devil; for the devil sinneth from the beginning. For this purpose the Son of God was manifested, that he might destroy the works of the devil.
Berean Study Bible (BSB) - 1 John 3:8 >The one who practices sin is of the devil, because the devil has been sinning from the very start. This is why the Son of God was revealed, to destroy the works of the devil.
Textus Receptus (TR) - 1 John 3:8 >ὁ ποιῶν τὴν ἁμαρτίαν ἐκ τοῦ διαβόλου ἐστίν, ὅτι ἀπ᾿ ἀρχῆς ὁ διάβολος ἁμαρτάνει. Εἰς τοῦτο ἐφανερώθη ὁ υἱὸς τοῦ Θεοῦ, ἵνα λύσῃ τὰ ἔργα τοῦ διαβόλου.