1 Peter 1:13-16

So prepare your minds for service and have self-control. All your hope should be for the gift of grace that will be yours when Jesus Christ is shown to you. Now that you are obedient children of God do not live as you did in the past. You did not understand, so you did the evil things you wanted. But be holy in all you do, just as God, the One who called you, is holy. It is written in the Scriptures: “You must be holy, because I am holy.”