(b) the listener consents indirectly to defamation when he does not spur the speaker on nor approve of what is said, but omits to stop the defamation or to protest against it, when he could and should do one or the other of these things.
2077. Sinfulness of Direct Consent to Defamation.—The listener who consents directly shares in the guilt of the defamer according to the words of St. Paul: “They who do such things (detractors, etc.) are worthy of death, and not only they that do them, but they also that consent to them that do them” (Rom., i. 32), Indeed, St. Bernard says that it is not easy to say which is more deserving of condemnation, to defame or to listen to defamation. But we may distinguish as follows:
(a) he who spurs the defamer on is more guilty than the defamer. This listener sins against the detractor whom he scandalizes by inducing to sin, against the detracted whom he deprives of his good name. Thus, he is both uncharitable to the detractor and unjust to the detracted, and is the moving cause of all the harm that is done (cfr. 2065);
(b) he who hears the defamer willingly may be more guilty internally than the defamer, since his hatred of his neighbor and his love of injustice may be more intense; but externally his sin is less, since, as is supposed, he is not bound to resist the defamation and he does not give any cooperation to the external injustice. He sins against justice affectively (i.e., in wish), but not effectively (i.e., in word or deed).
2078. Persons Who Listen from Curiosity.—What of those listeners who hear defamation willingly, not because they approve of the harm or evil that is being done, but because they are unusually curious or the speaker is unusually interesting?
(a) If these listeners could and should stop the defamation, they consent to it indirectly by their silence and thus are guilty (cfr. 2079).
(b) If these listeners are not able or are not bound to stop the defamation, some would nevertheless hold them guilty of grave sin, since they wish to hear something only because the knowledge will give them pleasure, knowing all the while that this knowledge cannot be had except at the expense of the good opinion they have of a neighbor. But the general view is that in this case there is no grave sin; for the listener does not approve of the moral evil (he is interested only in the graceful or eloquent or witty manner of the speaker, or the strangeness of the things related, or he is only concerned to hear the latest news, cfr. 234), and what he hears does not cause the lowering of his neighbor in his own opinion. But here it is supposed that the listener in no way encourages the defamation and that he is not bound to stop it. Curiosity about things that do not concern one is, however, a venial sin.
2079. Sinfulness of Indirect Consent to Defamation.—The listener who consents indirectly to defamation by not impeding it as he should is also guilty of sin, and in Scripture his conduct is strongly forbidden: “Have nothing to do with detractors” (Prov., xxiv. 21); “Hedge in thy ears with thorns, hear not a wicked tongue” (Ecclus., xxviii. 28).
(a) It is commonly admitted that the listener in question sins doubly against charity, and grievously if the defamation is seriously harmful; for he sins against the detractor by refusing to give a brotherly correction (see 1258 sqq.), and he sins also against the one detracted by refusing to raise his voice in behalf of the absent who cannot defend himself.
(b) It is also commonly admitted that, if the listener is the superior of the defamer or of the person defamed, he sins more gravely, since he is specially bound to correct his subject who is detracting in his presence, or to defend his absent subject who is being defamed. If the listener is a private person not responsible for the defamed person’s reputation, he does not sin against justice by his indirect consent to the defamation. Indeed, the inferiors or equals of the defamer rarely sin gravely by their neglecting to oppose his defamatory remarks.