"So if anyone is in Christ, there is a new creation: everything old has passed away; see, everything has become new!" (2 Cor 5:17)
Changes. When someone is saved from a mortal danger or overcomes a serious infirmity, it is customary to say that this person "has been born again", a metaphor for a new person…, but in practice it is possible that only some of his habits might have changed. Par example, someone who through a hard struggle has overcome cancer, may continue living life with habits different from the previous ones, as far as diet, physical exercise are concerned, or if he has been a chain smoker he could have turned into an anti-tobacco activist, or could have become a vivacious person, one who appreciates the things that life offers and which had gone unnoticed before. But when our salvation refers to the eternal salvation, we do not become new in a metaphoric sense or because some of our habits have changed… but, truly, because we have been born again, because we have a new life within us!