Romans 6:18

18 and that you, having been set free from sin, have become slaves of righteousness.

Romans 6:18 In-Context

16 Do you not know that if you present yourselves to anyone as obedient slaves, you are slaves of the one whom you obey, either of sin, which leads to death, or of obedience, which leads to righteousness?
17 But thanks be to God that you, having once been slaves of sin, have become obedient from the heart to the form of teaching to which you were entrusted,
18 and that you, having been set free from sin, have become slaves of righteousness.
19 I am speaking in human terms because of your natural limitations. For just as you once presented your members as slaves to impurity and to greater and greater iniquity, so now present your members as slaves to righteousness for sanctification.
20 When you were slaves of sin, you were free in regard to righteousness.
New Revised Standard Version Bible, copyright 1989, Division of Christian Education of the National Council of the Churches of Christ in the United States of America. Used by permission. All rights reserved.