17 But thanks be to God, that you who were once ^xslaves of sin have become obedient from the heart to the standard of teaching to which you were committed, 18 and, having been set ^yfree from sin, have become slaves of righteousness. 19 I am speaking ^zin human terms, because of your natural limitations. For just as you once presented your members as slaves to impurity and to lawlessness leading to more lawlessness, so now present your members as slaves to righteousness leading to ^asanctification.