1 John 3:8

8The [one]ὁpracticingποιῶντὴνsinἁμαρτίανofἐκtheτοῦdevilδιαβόλουisἐστίν,becauseὅτιfromἀπ’[the] beginningἀρχῆςtheὁdevilδιάβολοςhas been sinningἁμαρτάνει.Forεἰςthis [reason]τοῦτοwas revealedἐφανερώθηtheὁSonυἱὸςτοῦof Godθεοῦso thatἵναHe might destroyλύσῃtheτὰworksἔργαof theτοῦdevilδιαβόλου.

The one doing sin is of the devil, because the devil is sinning from the beginning. For this the Son of God was made manifest, so that He might destroy the works of the devil.