Romans 6:18-22

Now you are free from your slavery to sin, and you have become slaves to righteous living. Because of the weakness of your human nature, I am using the illustration of slavery to help you understand all this. Previously, you let yourselves be slaves to impurity and lawlessness, which led ever deeper into sin. Now you must give yourselves to be slaves to righteous living so that you will become holy. When you were slaves to sin, you were free from the obligation to do right. And what was the result? You are now ashamed of the things you used to do, things that end in eternal doom. But now you are free from the power of sin and have become slaves of God. Now you do those things that lead to holiness and result in eternal life.