1 Peter 1:14-16

14[Live] as obedient children [of God]; do not be conformed to the evil desires which governed you in your ignorance [before you knew the requirements and transforming power of the good news regarding salvation].

15But like the Holy One who called you, be holy yourselves in all your conduct [be set apart from the world by your godly character and moral courage];

16because it is written, “You shall be holy (set apart), for I am holy.”