There is a victorious trajectory to the Apostle Paul’s words in Ro 6:6., “We know that our old self was crucified with him in order that the body of sin might be brought to nothing, so that we would no longer be enslaved to sin.” Reading Calvin on this text recently was so heartening and union-with-Christ-centric:
“This old man, he says, is fastened to the cross of Christ, for by its power he is
slain: and he expressly referred to the cross, that he might more distinctly
show, that we cannot be otherwise put to death than by partaking of his
death. For I do not agree with those who think that he used the word
crucified, rather than dead, because he still lives, and is in some respects
vigorous. It is indeed a correct sentiment, but not suitable to this passage.
The body of sin, which he afterwards mentions, does not mean flesh and
bones, but the corrupted mass; for man, left to his own nature, is a mass
made up of sin.
He points out the end for which this destruction is effected, when he says,
so that we may no longer serve sin. It hence follows, that as long as we are
children of Adam, and nothing more than men, we are in bondage to sin,
that we can do nothing else but sin; but that being grafted in Christ, we are
delivered from this miserable thraldom; not that we immediately cease
entirely to sin, but that we become at last victorious in the contest” (Calvin’s Commentaries, Vol. XIX, 224-25).