Catechism in a Year
Thursday, June 21, 2018
200. How are sins remitted?
The first and chief sacrament for the forgiveness of sins in Baptism. For those sins committed after Baptism, Christ instituted the sacrament of Reconciliation or Penance through which a baptized person is reconciled with God and with the Church.
Further reading: CCC 876-980, 984-985
201. Why does the Church have the power to forgive sins?
The Church has the mission and the power to forgive sins because Christ himself has conferred it upon her: "Receive the Holy Spirit, if you forgive the sins of any, they are forgiven; if you retain the sins of any, they are retained" (John 20:22-23).
Further reading: CCC 981-983 ,986-987
These excerpts are from the Compendium of the CCC.