Romans 6:19-20

19I am speaking in [familiar] human terms because of your natural limitations [your spiritual immaturity]. For just as you presented your bodily members as slaves to impurity and to [moral] lawlessness, leading to further lawlessness, so now offer your members [your abilities, your talents] as slaves to righteousness, leading to sanctification [that is, being set apart for God’s purpose].

20When you were slaves of sin, you were free in regard to righteousness [you had no desire to conform to God’s will].