VII–XII. Actual sin: definition, kinds against the law of works, and omissions
VII. ACTUAL sin is called by the Scholastics and theologians every act, whether inward or outward, contrary to God's law is distinguished into sins of commission and of omission; into sins of heart, mouth, and work; into sins against God, neighbor, and oneself.
XII. Sin against the law of works is the transgression of the moral precepts of the Decalogue and of the law of nature. Sin of omission is the neglect of a due office. Communication with others sins is also sin, which the ancients expressed in these verses: I counsel, I command, I consent, I provoke, I praise; I do not uncover the fault, I do not punish, I do not rebuke, I do not withstand, but I command and defend anothers sins.
Latin
VII. ACTUALE peccatum a Scholasticis et Theologis dicitur omnis actus, sive interior sive exterior, dissonans a lege Dei. Distinguitur in peccata commissionis et omissionis; in peccata cordis, oris, et operis; in peccata contra Deum, proximum, et seipsum. XII. Peccatum contra legem operum est transgressio praeceptorum moralium Decalogi et legis naturae. Peccatum omissionis est neglectus debiti officii. Communicatio cum peccatis alienis etiam peccatum est, quod veteres his versiculis expresserunt: Consulo, praecipio, consentio, provoco, laudo, non retego culpam, non punio, non reprehendo, non obsto, sed praecipio et defendo aliena.