Romans 6

12 Therefore do not let sin reign in your mortal body, that you should obey it in its lusts, 13 nor present your members as instruments of unrighteousness to sin, but present yourselves to God as being alive from the dead, and your members as instruments of righteousness to God. 14 For sin shall not be master over you, for you are not under law but under grace.

Slaves to Righteousness

15 What then? Shall we sin because we are not under law but under grace? By no means! 16 Do you not know that to whom you present yourselves as obedient slaves, you are slaves to whom you obey, whether of sin resulting in death, or of obedience resulting in righteousness? 17 But thanks be to God, that though you used to be slaves of sin, yet you obeyed from your heart that form of doctrine to which you were delivered. 18 And having been freed from sin, you became enslaved to righteousness.