The contrast between those who seek to cause harm and those who promote peace is not just about their actions. It reaches deep into their minds, fundamentally changing their ability to experience joy. Those who plot harm engage in deep, calculated thinking, making secret plans to hurt others and stir up conflict [אבן עזרא, מצודת ציון, מלבי״ם]. The primary approach among commentators highlights a deep psychological divide between these two types of people. Because those who plan evil are consumed by deceitful thoughts that must be kept hidden, their minds are constantly filled with worry, sadness, and the fear of being exposed. Living with this constant anxiety means they can never truly be happy [רש״י, מצודת דוד, מלבי״ם]. On the other hand, those who advise peace care about the well-being of others and work to build up society. Because they act with honesty and openness, they have nothing to hide. This transparency allows them to experience genuine joy and enjoy the positive results of their words [שטיינזלץ, מלבי״ם]. This lasting joy is also an expression of their wisdom and inner wholeness, which stands in sharp contrast to the deceit that drives the wicked to constantly promote war and arguments [עמנואל הרומי].
Another perspective focuses on the active struggle between these two groups. When wicked individuals secretly plan to ruin good people, the advisors of peace step in to warn and protect the targets of these plots. If the evil plan fails and remains nothing more than a hidden thought, the promoters of peace are filled with joy for having stopped the harm, even though they recognize that God is ultimately the one who protects the innocent [אלשיך]. This joy deepens with the understanding that God never abandons good people to the hands of the wicked. Ultimately, the deceitful plans backfire on the very people who created them. The failure and downfall of the wicked bring a sense of rescue and happiness not only to the righteous but to the entire world [אבן עזרא, רלב״ג].
In the end, evil and deceit remain forever attached to the minds of the wicked. Good people, however, stay far away from wrongdoing and see no reason to get involved in anything sinful. Because they keep their distance from evil, they are rewarded with a pure and constant joy that remains in their hearts forever [אמרי דעת, רלב״ג].