“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.”
In order to understand the full impact of what Paul is teaching in this verse, we must back up to verse 1 because verse 6 rests on verses 1-5. Knowing this…what is the this? It is, as verses 1-5 show, that we were buried with Him [Jesus] in baptism and raised up from sin and the old man. He continues to emphasize this important point for believers. Before you can move on into a deeper spiritual walk with the Lord, you must know without any doubt that you’ve died to sin and have been raised to newness of life.
And because of this Paul says in verse 6, henceforth—from this point on—you should not serve sin. Sin once had control and dominance over you. But when you changed your mind and turned to Jesus, the old you is no more. Therefore, do not serve sin. Do not feed sin into your life.
The fact that we’ve been delivered from sin and its bondage should encourage us to walk free of sin. Jesus has set us free—forever. He has forgiven our sin—past, present, and future. Therefore there is no recourse to go back into sin.
Your new life is full of God’s blessings and goodness for you. Don’t go backwards and try to serve sin and God. It won’t work. You’ve been set free.