I speak after the manner of men because of the infirmity of your flesh…
1. There is no condition so sad as that of a slave; and no slavery so hard as that of sin. There was once a tyrant who ordered one of his subjects to make an iron chain of a certain length. The man brought the work, and the tyrant bade him make it longer still. And he continued to add link to link, till at length the cruel taskmaster ordered his servants to bind the worker with his own chain, and cast him into the fire. That hardest of tyrants, the devil, treats his slaves in like manner. At first the chain of sin is light, and could easily be cast off. But day by day Satan bids his victims add another link. The servant of sin grows more hardened, daring, reckless in his evil way. He adds sin to sin, and then the end comes.
2. Very often the slaves of sin do not know that they are slaves. They talk about their freedom from restraint, they tell us they are their own masters, that the godly are slaves. Once I visited a madhouse. Some had one delusion, some another. One thought he was a king, another the heir to a fortune. But one thing they all believed, that they were in their right minds.
3. The servants of sin bear about the marks of their master. I have seen gangs of convicts working on Dartmoor. You could not mistake them for anything else if they were dressed in the best of clothing. The word convict is stamped upon every grey face, as plainly as the Government mark is stamped upon their clothing. The servants of sin have their marks also. Look at the shifty eyes, and downward glance of the knave and the false man; the flushed brow and cruel eyes of the angry man; the weak lips and trembling hand of the drunkard.
4. The servants of sin have their so-called enjoyments, these are the baits with which the tyrant gets them into his power. For a time the way of transgressors is made easy and pleasant. The broad road is shaded, and edged with fair fruits and flowers. A saint of old once saw a man leading a herd of swine, which followed him willingly. When the saint marvelled, the man showed him that they followed him for the sake of the sweet food in his hand, and knew not whither they were going. So the servants of sin follow Satan for the sake of the sweet things which he offers, and know not that they are going to their death, even the living death of a lost soul.
(J. H. W. Buxton, M. A.)
Parallel VersesKJV: I speak after the manner of men because of the infirmity of your flesh: for as ye have yielded your members servants to uncleanness and to iniquity unto iniquity; even so now yield your members servants to righteousness unto holiness.
WEB: I speak in human terms because of the weakness of your flesh, for as you presented your members as servants to uncleanness and to wickedness upon wickedness, even so now present your members as servants to righteousness for sanctification.