But just as he who called you is holy, so be holy in all you do; for it is written: "Be holy, because I am holy." (1 Pet.1:15-16 - NIV).
Has Christ changed your heart? If so, then it will be marked by holiness. God imparts that element of His nature to every one of His children. To be without is to be without Christ. "Christ will be master of the heart, and sin must be mortified. If your life is unholy, then your heart is unchanged, and you are an unsaved person. The Savior will sanctify His people, renew them, give them a hatred of sin, and a love of holiness. The grace that does not make a man better than others is a worthless counterfeit. Christ saves His people, not IN their sins, but FROM their sins. Without holiness, no man shall see the Lord" (Charles Spurgeon).