11 Likewise you also, reckon yourselves to be dead indeed to sin, but alive to God in Christ Jesus our Lord. 12 Therefore do not let sin reign in your mortal body, that you should obey it in its lusts. 13 And do not present your members as instruments of unrighteousness to sin, but present yourselves to God as being alive from the dead, and your members as instruments of righteousness to God. (Romans 6:11-13)
The apostle makes it very clear that we have the power to decide not to let sin rule over us. The Christian is “alive to God in Christ” (v. 11). When a sinner is baptized into Christ Jesus and into His death, he is also “baptized into death” to sin (Rom. 6:3-4). Sin is put to death in Christ. The Christian is then commanded, “Do not let sin reign in your moral body” (v. 12). We accomplish this by presenting our bodies “as instruments of righteousness to God” (v. 13). Paul is not saying a Christian will never commit a sin. He is saying we choose to no longer allow sin to rule us. The person who freely presents himself to God practices righteousness instead of sin. We serve God, not sin.