Catechism of the Catholic Church §1039 — excerpt
In the presence of Christ, who is Truth itself, the truth of each man's relationship with God will be laid bare. The Last Judgment will reveal even to its furthest consequences the good each person has done or failed to do during his earthly life:
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: St. Augustine, Sermo 18, 4: PL 38, 130-131