What shall we say, then? Shall we go on sinning so that grace may increase? By no means! We died to sin; HOW CAN WE LIVE IN IT ANY LONGER? 

Therefore do not let sign reign in your mortal body so that you obey its evil desires. Do not offer the parts of your body to sin, as instruments of wickedness, but rather offer yourselves to God, as those who have been brought from death to life; and offer the parts of your body to him as instruments of righteousness. For sin shall not be your master, because you are not under law, but under grace.