Romans 7:23 : But I see a different law in my members, warring against the law of my mind, and bringing me into captivity under the law of sin which is in my members. "Members" here stands for the sum total of the body. The different law--different from the one he has been discussing--is the rule of sin in his members. The law of the mind is the law of God, the law addressed to the mind. It is through the mind the inner man--that God seeks by his law to control the body. Hence, there is a warfare. If the spirit under the influence of the law of God controls the body, the person lives a spiritual life. If the appetites and passions of the body control the person, he is brought into captivity to the law of sin in his members. In Romans 7:14 Paul speaks of this condition as being sold under sin. Such a person is a slave of sin. It could not be said of a Christian that he was sold under sin--brought into captivity to the rule of sin. Such language as Paul here uses shows the complete helplessness of a person under the dominion of sin and without Christ.