Catechism of the Catholic Church §802 — excerpt
Christ Jesus "gave himself for us to redeem us from all iniquity and to purify for himself a people of his own" (Titus 2:14).
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.