Romans 6:19

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.

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.

I speak after the manner of men because of the infirmity of your flesh: for as ye presented your members `as' servants to uncleanness and to iniquity unto iniquity, even so now present your members `as' servants to righteousness unto sanctification.

In the manner of men I speak, because of the weakness of your flesh, for even as ye did present your members servants to the uncleanness and to the lawlessness -- to the lawlessness, so now present your members servants to the righteousness -- to sanctification,

I am speaking in human terms because of the weakness of your flesh. Just as you used to offer the parts of your body in slavery to impurity and to escalating wickedness, so now offer them in slavery to righteousness leading to holiness.