Catechism of the Catholic Church §1436 — excerpt
Eucharist and Penance. Daily conversion and penance find their source and nourishment in the Eucharist, for in it is made present the sacrifice of Christ which has reconciled us with God.
This translation is under copyright, so only the cited words are quoted here. Follow the link for the full text. Translation: English translation of the Catechism of the Catholic Church, 2nd ed. (Libreria Editrice Vaticana), as posted at vatican.va.
Also cites: Council of Trent (1551) DS 1638
