Forgiveness in the profession of faith
The Creed professes forgiveness because Christ entrusts a ministry of reconciliation to the Church. Baptism brings a first sacramental forgiveness, and the sacrament of penance serves the continuing conversion of the baptized. Forgiveness is a gift of mercy that calls for repentance, repair where possible, and renewed charity. It is not permission to ignore harm or evade responsibility.
Follow the sources
An original library introduction, with sources for further study. This is a starting point rather than a complete treatment or a finished formation lesson.