A proper, functioning life relies entirely on an unwavering commitment to truth. The true divide between good and evil lies not only in a person's physical actions but in their internal attitude toward falsehood and the social fallout of their choices.
A righteous individual actively distances himself from lies and despises them. Because true justice is built upon a love for truth, any leaning toward falsehood inevitably leads to a corruption of justice [מלבי״ם]. Furthermore, falsehood acts as a barrier, preventing a person from ever reaching personal perfection [רלב״ג]. By hating deceit, the righteous person actually emulates God, striving to resemble His divine nature [עמנואל הרומי]. This hatred of falsehood extends to all forms of untruth, including giving false testimony [אבן עזרא], as well as listening to gossip and slander. A good person despises hearing such talk because it can easily lead to forming unfair and mistaken judgments about others [מלבי״ם, מצודת דוד]. Consequently, a righteous person is expected to stand firmly against the lies of the wicked. He must never agree with them or remain silent simply out of fear of being insulted or attacked [אלשיך].
In sharp contrast, a wicked individual embraces falsehood with love. He is quick to believe lies and stubbornly clings to them [רש״י, רלב״ג, מצודת דוד]. This deep connection to deceit ultimately breeds disgust and severe shame [מצודת ציון, שטיינזלץ, מלבי״ם]. Commentators offer different perspectives on exactly how this shame manifests and who inflicts it. One approach suggests that the wicked person brings this disgrace entirely upon himself. His stubborn attachment to lies makes his own actions repulsive and stains his soul with shame. Tragically, even when his deceit causes him severe public embarrassment, he refuses to abandon his dishonest ways [רלב״ג, עמנואל הרומי].
Another perspective argues that the wicked person directs this harm outward, using lies and slander to ruin another person's reputation behind their back and humiliate them to their face [מלבי״ם]. When a wicked person hears false rumors about someone else, he eagerly accepts them as fact, develops a disgust for the victim, and actively shames them [מצודת דוד]. A third approach reverses the dynamic entirely, suggesting that it is actually the righteous person who brings shame upon the wicked. Because the righteous person so deeply hates falsehood, he also despises the wicked individual who spreads it. Driven by this hatred for deceit, the righteous person takes action to publicly disgrace the wicked, exposing his repulsive nature to the world and shaming him with all his might [אבן עזרא, עמנואל הרומי, מלבי״ם].