"The sacrament of Penance is also called the sacrament of Reconciliation, of forgiveness, of conversion, or of confession. Jesus himself instituted the sacrament of Penance when he showed himself to his apostles on Easter day and commanded them, "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). (Catechism of the Catholic Church, 1422-1424, 1486,1439, 1485)
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