איוב, פרק ל״א, פסוק כ׳

A true act of charity not only comforts the body of the person receiving it but creates a deep, lingering gratitude. Job makes a solemn oath regarding his lifelong dedication to clothing the poor and destitute, continuing his defense of his moral character [רמב״ן, ביאור שטיינזלץ]. He poetically describes how the very bodies of those he helped expressed their thanks. By sewing proper garments made from the fleece sheared directly from his own flocks, he ensured that those with nothing were kept warm [מצודת דוד, ביאור שטיינזלץ]. The primary approach among commentators is that this serves as a beautiful metaphor. After Job clothed the destitute, the poor man's warmed flesh and loins practically radiated a blessing back toward him [מצודת ציון, ביאור שטיינזלץ].

Beyond this simple reading, the imagery reveals the profound power of a blessing and how it ultimately returns to the giver. While the poor man only experienced the physical, external warmth provided by the sheep's wool, the heartfelt blessing that emerged from him rested upon Job's entire being. In this spiritual exchange, the one who gives actually receives far more than the one who takes [אלשיך].

Furthermore, the description addresses two entirely different levels of poverty. First, there is the person who is completely destitute and bare. For this individual, Job provided basic clothing to cover his exposed body. Second, there is the person who possesses basic undergarments but lacks a heavy outer layer to survive the cold. For this person, Job supplied a thick coat made from the wool of his own sheep, ensuring complete protection from the harsh elements [אלשיך].