1866 Vices can be classified according to the virtues they oppose, or also be linked to the capital sins which Christian experience has distinguished, following St. John Cassian and St. Gregory the Great. They are called “capital” because they engender other sins, other vices.138 They are pride, avarice, envy, wrath, lust, gluttony, and sloth or acedia.
1867 The catechetical tradition also recalls that there are “sins that cry to heaven”: the blood of Abel,139 the sin of the Sodomites,140 the cry of the people oppressed in Egypt,141 the cry of the foreigner, the widow, and the orphan,142 injustice to the wage earner.143
1868 Sin is a personal act. Moreover, we have a responsibility for the sins committed by others when we cooperate in them:
- by participating directly and voluntarily in them;
- by ordering, advising, praising, or approving them;
- by not disclosing or not hindering them when we have an obligation to do so;
- by protecting evil-doers.