Romans 6
17 Ref But praise be to God that though you were the servants of sin, you have now given yourselves freely to that form of teaching under which you were placed;
18 Ref And being made free from sin you have been made the servants of righteousness.
19 Ref I am using words in the way of men, because your flesh is feeble: as you gave your bodies as servants to what is unclean, and to evil to do evil, so now give them as servants to righteousness to do what is holy.