ὁ γὰρ ἀποθανὼν δεδικαίωται ἀπὸ τῆς ἁμαρτίας → anyone who has died has been set free from sin, the person who has died has been freed from sin, someone who has died has been freed from sin (Romans 6:7)
μεθέξομαι: μέλ. του μετ-έχω.