The Leviathan is a formidable creature mentioned in the Bible, primarily in the book of Job, with additional references in Psalms and Isaiah. This creature is often depicted as a powerful sea monster, embodying chaos and strength beyond human control. The most detailed description of Leviathan's physical attributes is found in Job 41, where God Himself speaks of the creature's might and invincibility.

Job 41:1-34 : The passage begins with a rhetorical question, "Can you pull in Leviathan with a hook or tie down his tongue with a rope?" (Job 41:1). This immediately sets the tone for Leviathan's immense power and resistance to human capture or control. The text goes on to describe various aspects of Leviathan's physical form:

1. Armor-like Scales: Leviathan's body is covered with scales that are described as impenetrable. "His rows of scales are his pride, tightly sealed together. One scale is so near to another that no air can pass between them" (Job 41:15-16). This imagery suggests a creature with a natural armor, impervious to external threats.

2. Fearsome Teeth and Jaws: The creature's mouth is depicted as a source of terror. "Who can open his jaws, ringed with fearsome teeth?" (Job 41:14). The emphasis on the jaws and teeth highlights Leviathan's capability to inflict great harm.

3. Fiery Breath: Leviathan is said to have a fiery breath, adding to its terrifying presence. "His breath sets coals ablaze, and flames pour from his mouth" (Job 41:21). This description aligns with ancient Near Eastern depictions of dragons or sea monsters that breathe fire.

4. Strength and Might: The text emphasizes Leviathan's unparalleled strength. "His back has rows of shields tightly sealed together" (Job 41:15), and "His chest is as hard as a rock, hard as a lower millstone" (Job 41:24). These descriptions convey a creature of immense physical power and resilience.

5. Fearlessness: Leviathan is portrayed as fearless, unchallenged by any creature. "When he rises up, the mighty are terrified; they withdraw before his thrashing" (Job 41:25). This suggests a creature that commands respect and fear from all who encounter it.

6. Aquatic Nature: Leviathan is associated with the sea, as indicated by its ability to churn the waters. "He makes the depths seethe like a cauldron; he makes the sea like a jar of ointment" (Job 41:31). This reinforces the creature's dominion over the aquatic realm.

Psalms and Isaiah References: In Psalm 74:14, Leviathan is mentioned in the context of God's power over creation, "You crushed the heads of Leviathan; You fed him to the creatures of the desert." Similarly, Isaiah 27:1 speaks of God's ultimate victory over chaos, "In that day the LORD will take His sharp, great, and mighty sword, and bring judgment on Leviathan, the fleeing serpent—Leviathan, the coiling serpent—and He will slay the dragon of the sea."

The biblical portrayal of Leviathan serves as a symbol of God's sovereignty over all creation, illustrating His power to subdue even the most fearsome and untamable forces.