| 1870 "God has consigned all men to disobedience, that he may have mercy upon all" (Rom 11:32). |
| 1871 Sin is an utterance, a deed, or a desire contrary to the eternal law (St. Augustine, Faust 22: PL 42, 418). It is an offense against God. It rises up against God in a disobedience contrary to the obedience of Christ. |
| 1872 Sin is an act contrary to reason. It wounds man's nature and injures human solidarity. |
| 1873 The root of all sins lies in man's heart. The kinds and the gravity of sins are determined principally by their objects. |