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?

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.

Jesus answered them, "Most assuredly I say to you, that everyone that practices sin is a slave of sin.