A Catholic is certainly free to believe that,Rule and Raven, but that's NOT what the Scriptures teach per Romans chapter 8. When Jesus told Nicodemus that he had to be born again, He,Jesus,was talking to him,Nicodemus,NOT any corporate body of believers, and so it must be with EVERY individual Christian, there is no doubt of that.Romans chapter 8 is clear: ANYONE who does not have the Spirit of Christ,he(or she) does not belong to Him.What do you think that the great Apostle Paul was talking about in Galatians 2:20? What Scriptures are you reading?