So for the soul, created according to the image of God and obliged by nature to become like its Creator, it is indescribably shameful to give itself over to sin and be disfigured in it.
But while the sinner is sinning, he does not fully recognize the shamefulness of sin. Often he even boasts of it. Yet when he comes out of sin and looks back, his face cannot but be covered with shame.
Therefore the Apostle does not say, you were ashamed then, but, you are ashamed now.
"Such was slavery to sin that the mere remembrance of it now makes you ashamed. But if the remembrance shames you, still more shameful is the deed itself."
"Therefore you have now received a twofold benefit. You have been freed from shame and have learned what condition you were in. Likewise, then you suffered a twofold harm."
"You did shameful deeds and did not know that they were shameful, which is still worse than the first. Yet despite the harm, you remained in slavery" (St. Chrysostom).
"For the end of those things is death." It is not enough that sin covers man's face with shame, though he is the best and most perfect creature of God, and brings him down to a state worse than the lowest creature.
It is not enough that sin does this. It also subjects him to death. The end of life in sin is death: spiritual death (see Oecumenius), which is inevitably followed by eternal death after bodily death (see Blessed Theodoret).
One may think that the Apostle means here not bodily death alone, but death in every sense: bodily, spiritual, and eternal.
As soon as sin enters and begins to tyrannize in man, death also begins to act in him. Sin decomposes and destroys our nature.
It decomposes the body by producing in it a struggle of vital elements, disturbing the natural course of bodily functions, and disordering their harmony through excessive excitation of one or suppression of another.
The result is illness and always premature death. Sin also decomposes the soul by arming one of its powers against another, separating them, and thereby depriving the soul of its proper vitality.
That vitality is conditioned by the harmonious activity of all the powers. If the soul does not amend, it passes into eternity with this decomposing and destructive power of sin.
As a result, its eternal inheritance will be unceasing torment and dying, with all the terrors of death tearing the heart apart. All this the Apostle brought to mind when he said that the end of sinful life is death.
What a strong impulse this is not to submit again to the slavery of sin. This is especially so for those who have experienced in themselves the ruinous state into which sin casts a man, and have only just been freed from it.
But the Apostle does not limit himself to this. He adds a depiction of the blessed state into which slavery to righteousness places the believing Christian.