This needs insisting on; for a number of persons who are not unwilling to confess that they are slaves by nature, from some cause or other have learned to think that they are not bound to any real service at all, now that Christ has set them free. Now if by the word slavery, some cruel and miserable state of suffering is meant, such as human masters often inflict on their slaves, in that sense indeed Christians are not slaves, and the word is improper to apply to them; but if by being slaves, is meant that we cannot throw up our service, change our place, and do as we will, in that sense it is literally true, that we are more than servants to Christ, we are, as the text really words it, slaves. Men often speak as if the perfection of human happiness lay in our being free to do or not to do, to choose and to reject. Now we are indeed thus free, as far as this, - that if we do not choose to be Christ's servants, we can go back to that old bondage from which He rescued us, and be slaves again to the powers of evil. But though we are free to make our situation worse, we are not free to be without service or post of any kind. It is not in man's nature to be out of all service and to be self-dependent. We may choose our master, but God or mammon we must serve. We cannot possibly be in a neutral or intermediate state. Such a state does not exist. ... We cannot be without a master, such is the law of our nature; yet a number of persons, as I have said, overlook it, and think their Christian liberty lies in being free from all law, even from the law of God. … Men seem to have thought that, since the law of sin was annulled, and the terrors of the law of nature removed, that therefore they were under no law at all; that their own will was their law, and that faith stood instead of obedience. In opposition to this great mistake, St. Paul reminds his brethren in the text, that when they were "made free from sin," they "became the servants of righteousness."