Saint Leo the Great responds, Christ’s Redemptive act gave us blessings better than those the demon’s envy had taken away. Saint Thomas Aquinas wrote: there is nothing to prevent human nature from being destined to a much higher end after sin. God allows evil things to happen to draw from them a much greater good. Thus Saint Paul says: “Where sin abounded grace has more abounded”. On Holy Saturday at the Easter Vigil, the Paschal hymn, the Exultet, says: “O happy fault, which won for us so great a Redeemer”.
Summary
Only Mary, the Mother of Jesus, came into the world without original sin.
Christ by His Cross and Resurrection
has broken the power of Satan and set us free.
Created by God in a state of holiness, man was seduced by the Devil.
Man abused his freedom, and set himself up against God.
By his sin, Adam, as the first man, lost holiness and original justice which he had received from God not only for himself but for the whole human race...
Adam and Eve have transmitted to their descendents human nature wounded by sin, deprived of sanctifying grace. This is what we mean by original sin in us.
Baptism gives us sanctifying grace but it does not change our weakened human nature, with ignorance, suffering and death.
