Catechism of the Catholic Church

Life in Christ 595 2479 Detraction and calumny destroy the reputation and honor of one’s neighbor. Honor is the social witness given to human dignity, and everyone enjoys a natural right to the honor of his name and reputation and to respect. Thus, detraction and calumny offend against the virtues of justice and charity. 2480 Every word or attitude is forbidden which by flattery, adulation, or complaisance encourages and confirms another in mali­ cious acts and perverse conduct. Adulation is a grave fault if it makes one an accomplice in another’s vices or grave sins. Neither the desire to be of service nor friendship justifies duplicitous speech. Adulation is a venial sin when it only seeks to be agreeable, to avoid evil, to meet a need, or to obtain legitimate advantages. 2481 Boasting or bragging is an offense against truth. So is irony aimed at disparaging someone by maliciously caricaturing some aspect of his behavior. 2482 “A lie consists in speaking a falsehood with the intention of deceiving.” 281 The Lord denounces lying as the work of the devil: “You are of your father the devil, . . . there is no truth in him. When he lies, he speaks according to his own nature, for he is a liar and the father of lies.” 282 2483 Lying is the most direct offense against the truth. To lie is to speak or act against the truth in order to lead someone into error. By injuring man’s relation to truth and to his neighbor, a lie offends against the fundamental relation of man and of his word to the Lord. 2484 The gravity of a lie is measured against the nature of the truth it deforms, the circumstances, the intentions of the one who lies, and the harm suffered by its victims. If a lie in itself only constitutes a venial sin, it becomes mortal when it does grave injury to the virtues of justice and charity. 2485 By its very nature, lying is to be condemned. It is a profa­ nation of speech, whereas the purpose of speech is to communicate known truth to others. The deliberate intention of leading a neigh­ bor into error by saying things contrary to the truth constitutes a failure in justice and charity. The culpability is greater when the intention of deceiving entails the risk of deadly consequences for those who are led astray. 281 St. Augustine, De mendacio 4, 5: PL 40, 491. 282 Jn 8:44. 1753 392 1750 1756