6 Knowing this, that our old man is crucified with him, that the body of sin might be destroyed, that henceforth we should not serve sin. (Romans 6:6 KJV)
William Burkitt’s Commentary
By the old man we are to understand our corrupt and derived nature, so called, because it is as old as Adam, and divided from Adam; born and bred with us. This old man, or our corrupt and vicious nature, must be crucified to show our conformity and likeness to Christ in his crucifixion. The cross brings pain, shame, and death; the like must sin undergo in the work of mortification. By the body of sin, we are to understand the whole stock and mass of corruption, compacted as it were into one monstrous body, prepared with all its members to commit actual sins. Called a body, because composed of many sinful passions and lusts, as the body is of many members, and also because they are executed by the body.
And further, because sin has a real substance in us as if it were a body; not that sin is a substance, but the pravity of a substance. Now this body of sin must be destroyed, not as to actions only, but as to affections and inclinations also; ’tis not enough that we scratch this old man’s face, but we must stab his heart in desire, in purpose, in endeavours: We must seek the death and destruction of all sin, That henceforth we may not serve sin; that is, that henceforward we should renounce the service of and all relation to sin.
Where note, 1. That before regeneration, we are all servants of, yea, slaves to sin; so many lusts, so many lords reigning in us, and tyrannizing over us.
Note, 2. That it is one thing to sin, and another thing to serve sin: To serve sin is to yield willing obedience to indulge ourselves in any presumptuous act or course of sin. ‘Tis not the presence, but prevalency of sin, that destroys and damns the sinner; ’tis not the flesh being in us, but our being in the flesh, that displeases God.
Oh! happy for us, if sin’s dominion be taken away, though its life be prolonged for a season.