Romans 6 has an uneven history of interpretation. Is Paul calling us to mystical union? Is he telling us to be stronger in our resolution to a sin-free life? Well yes, but not because that is how to live in this new life, that is all about what has been done for us by God through Jesus. Rather he is telling us that we have been made different. That we are new. Now...don't submit to, don't go back to the old way–because it won't be the same. You are different.
So roll up your sleeves, put your mind in gear, be totally ready to receive the gift that’s coming when Jesus arrives. Don’t lazily slip back into those old grooves of evil, doing just what you feel like doing. You didn’t know any better then; you do now. As obedient children, let yourselves be pulled into a way of life shaped by God’s life, a life energetic and blazing with holiness. God said, “I am holy; you be holy. [1 Peter 1:13-16]