In this sense too we can say with St. Paul that "great indeed is the mystery of our religion. In this sense too piety, as a force for conversion and reconciliation, confronts iniquity and sin. In this case too the essential aspects of the mystery of Christ are the object of piety in the sense that the Christian accepts the mystery, contemplates it and draws from it the spiritual strength necessary for living according to the Gospel. Here too one must say that “no one born of God commits sin”; but the expression has an imperative sense: Sustained by the mystery of Christ as by an interior source of spiritual energy,** the Christian,being a child of God, is warned not to sin and indeed receives the commandment not to sin but to live in a manner worthy of “the house of God, that is, the church of the living God.”**(109)