NET

19 (I am speaking in human terms because of the weakness of your flesh.) For just as you once presented your members as slaves to impurity and lawlessness leading to more lawlessness, so now present your members as slaves to righteousness leading to sanctification.

Darby

19 I speak humanly on account of the weakness of your flesh. For even as ye have yielded your members in bondage to uncleanness and to lawlessness unto lawlessness, so now yield your members in bondage to righteousness unto holiness.

KJV

19 I speak after the manner of men because of the infirmity of your flesh: for as ye have yielded your members servants to uncleanness and to iniquity unto iniquity; even so now yield your members servants to righteousness unto holiness.