Romans 6:6

‘Knowing this, that our old man was crucified with him, that the body of sin might be done away, that so we should no longer be in bondage to sin,’

He now reverts back to stress that we are no longer under bondage to sin. And this is because we know that our ‘old man’ was crucified with Him. Our ‘old man’ is ‘what we were in ourselves before we came to Christ’. This has died with Jesus on the cross. That is what our commitment to Christ as our Saviour has involved. And the purpose was that the old body (our old self) which was controlled by sin (our body which was then ‘the body of sin’) might be done away/rendered powerless, so that we might no longer be under bondage to the tyrant sin. For while we still live in the same body it is a renewed body, and is no longer a body of sin. Sin no longer controls it. Rather sin fights a rearguard action within it (Romans 7:14-25). Our body is now one which is submitted to Christ and empowered by the Holy Spirit.