He that is dead, i.e. to sin, is freed from it; not only in respect of the guilt thereof, which sense the marginal reading of the word seems to respect, but also in regard of the service of it. This agrees best with the context; look, as he that is dead is freed and discharged from the authority of, those who had dominion over him in his lifetime, so it is with those that are dead to sin. There is a parallel place, 1 Peter 4:1.
Related Commentaries of Romans 6:7
Romans 6:7
7 For he that is dead is freeda from sin.