confession

noun

1. an admission of misdeeds or faults
2. a written document acknowledging an offense and signed by the guilty party
3. (Roman Catholic Church) the act of a penitent disclosing their sinfulness before a priest in the sacrament of penance in the hope of absolution
4. a public declaration of your faith
5. the document that spells out the belief system of a given church (especially the Reformation churches of the 16th century)