144 If anyone is so unfortunate as to wander far from his divine Redeemer in sin and iniquity, let him return to Him who is "the way, and the truth, and the life." (72) If anyone is lukewarm, slothful, remiss, or neglectful in the practice of his religion, let him arouse his faith and, by the grace of God, nurture, rekindle, and strengthen his virtue. He who "is just, let him be just still, and he who is holy, let him be hallowed still." (73) This is Our earnest plea.
Source: Ad Petri Cathedram (Vatican.va)