איוב, פרק מ״א, פסוק י״א

The immense natural heat of the creature is vividly brought to life through the image of fire and sparks bursting directly from its body. The repetitive descriptions of this heat serve to amplify and emphasize the beast's overwhelming physical power [מצודת דוד, מלבי״ם]. Its breath is so intensely hot that it resembles actual flames [רש״י] or burning pieces of wood [מצודת ציון] radiating outward into the open air [רש״י, מצודת דוד, ביאור שטיינזלץ].

Along with this blazing breath, the creature emits further bursts of heat. The primary approach among commentators is that these are flying sparks of fire [מצודת ציון, רלב״ג, ביאור שטיינזלץ, אבן עזרא], though some describe them as solid pieces of fire [מלבי״ם] or additional torch-like flames [רש״י]. These fiery bursts move with intense energy. Most commentators explain that the sparks are thrown and scattered, bursting outward in every direction [מצודת ציון, אבן עזרא, מלבי״ם, ביאור שטיינזלץ, רש״י]. Offering a slightly different perspective, another approach links the description of this movement to the concept of giving birth, suggesting that the sparks are actively generated and born from deep within the creature before escaping into the world [רלב״ג].