This talk on the nature of sin is the thirty first in a series of lectures on the Catholic Catechism recorded in 1965 by Archbishop Fulton J Sheen in the privacy of his own study and first broadcast under the title 'Life is Worth Living'. A master communicator, Fulton Sheen recorded this insightful overview of the teachings of the Holy Catholic Church.
God, in His mercy, instituted the sacrament of Penance, or Confession, so that sins committed after Baptism may be remitted. Sin is possible because we are free. It is an abuse of freedom. Denying sin makes the forgiveness of sins impossible. Sin is a deliberate violation of the law of God and is the breaking of a personal relationship. But regardless of how great the sin, there is always mercy.