The new service completely ousts the old

^15-21 Now, what shall we do? Shall we go on sinning because we have no Law to condemn us any more, but are living under grace? Never! Just think what it would mean. You belong to the power which you choose to obey, whether you choose sin, whose reward is death, or God, obedience to whom means the reward of righteousness. Thank God that you, who were at one time the servants of sin, honestly responded to the impact of Christ’s teaching when you came under its influence. Then, released from the service of sin, you entered the service of righteousness. (I use an everyday illustration because human nature grasps truth more readily that way.) In the past you voluntarily gave your bodies to the service of vice and wickedness—for the purpose of becoming wicked. So, now, give yourselves to the service of righteousness—for the purpose of becoming really good. For when you were employed by sin you owed no duty to righteousness. Yet what sort of harvest did you reap from those things that today you blush to remember? In the long run those things mean one thing only—death.

²² But now that you are employed by God, you owe no duty to sin, and you reap the fruit of being made righteous, while at the end of the road there is life for evermore.