Charles Ellicott Commentary Romans 8:10

"And if Christ is in you, the body is dead because of sin; but the spirit is life because of righteousness." — Romans 8:10 (ASV)

The results of the presence of Christ in the soul.

The body is dead because of sin.—Here the word is evidently used of physical death. The doom entailed by sin still, indeed, attaches to the body—but only to the body. The body, indeed, must die, but there the hold of sin upon the Christian ends; it cannot touch him further.

The Spirit is life because of righteousness.—But turn to another side of human nature; take it in its highest part and faculty—the spirit. That is full of vitality because it is full of righteousness, first imputed and then real. Life and righteousness are correlative terms, the one involving the other.