Romans 6:17-18 But thanks be to God, that you who were once slaves of sin have become obedient from the heart to the standard of teaching to which you were committed, (18) and, having been set free from sin, have become slaves of righteousness.
A Christian is a disciple who obeys the teachings of Christ. This is caused by God’s grace and not by unaided human decision. The end result of God intervening with his grace is sinners are set free from sin. This doesn’t make believers sinless, but it does break the power of sin and enables and causes them to respond to a new master. This passage leaves no room for someone to be a carnal Christian and still be a slave to sin. If someone is a slave to sin, he is not a believer and is still the wretched man that Paul goes on to describe in chapter 7. It is God who saves sinners from their body of death and frees them from their slavery to sin.
Focus on Christ #132