Romans 6:18 in the King James Version
Being then made free from sin, ye became the servants of righteousness.
Context
17 But thanks be to God that, whereas you were bondservants of sin, you became obedient from the heart to that form of teaching to which you were delivered.
18 Being made free from sin, you became bondservants of righteousness.
19 I speak in human terms because of the weakness of your flesh; for as you presented your members as servants to uncleanness and to wickedness upon wickedness, even so now present your members as servants to righteousness for sanctification.