משלי, פרק י״ח, פסוק כ׳

Human speech holds immense power to shape reality and determine a person's destiny. The primary approach among commentators is that a clear principle of cause and effect governs communication. A person bears the consequences of whatever leaves their mouth, whether for good or bad, much like a farmer eats the harvest of their own hard work. This imagery of fruit naturally evokes the idea of eating and being satisfied by the results of one's words [עמנואל הרומי].

Commentators offer different perspectives on the exact nature of the harvest a person consumes. On an interpersonal level, gentle speech brings peace and keeps harm away, while harsh words provoke anger and cause damage [רלב״ג]. On a physical level, a person's livelihood and sustenance depend on how they use their mouth and tongue, as these are the primary tools that generate their income [אמרי דעת].

Taking a more spiritual approach, some explain that while silence is beneficial in material matters, speech is the primary focus when it comes to Torah and commandments. A righteous person receives an immediate reward in this world simply for speaking words of Torah, providing initial satisfaction. A secondary harvest arrives later when others hear these teachings, learn from them, and act upon them, bringing the speaker additional abundance through the listeners' actions [אלשיך, חומת אנך]. Similarly, sharing true and correct knowledge brings happiness, whereas spreading false ideas brings disaster [עמנואל הרומי]. Going even further, a unique perspective suggests that the words of Torah scholars carry tangible power, capable of altering reality, changing the status of forbidden things, and even creating new realities entirely through speech [חומת אנך].

While some commentators view the parallel imagery of the mouth and lips as poetic repetition [מצודת דוד, עמנואל הרומי], others see a conceptual progression. In this view, the initial speech represents wisdom, yielding an early harvest, while the subsequent speech represents clear knowledge, resulting in a fully ripe and finished crop. When a person fills themselves with this wisdom and knowledge, they achieve complete spiritual satisfaction [מלבי״ם]. Ultimately, these concepts are deeply connected to the reality that life and death rest in the power of the tongue. The words we release into the world carry fateful, lasting consequences, sometimes even when spoken without any initial intention [אבן עזרא, חומת אנך, עמנואל הרומי].