Job 40:18 Meaning: The Strength That Humbles
His bones are like tubes of bronze. His limbs are like bars of iron.
His bones are as strong pieces of brass; his bones are like bars of iron.
His bones areastubes of brass; His limbs are like bars of iron.
His bones are tubes of brass, His bones are as a bar of iron.
His bones are tubes of bronze, his members are like bars of iron.
Meaning in one sentence
Why does God describe Behemoth's bones as bronze and iron? This verse reveals the power of God's creation and our proper place before Him.
Context
God is speaking to Job out of the storm. After Job has demanded answers for his suffering, God turns the tables. He does not explain Job’s pain. Instead, He shows Job two creatures that defy human control: Behemoth and Leviathan. This verse sits inside the description of Behemoth, a beast of tremendous power. God is making a point: if Job cannot manage this animal, how can he question the One who made it? The whole speech is a lesson in humility, not through rebuke, but through the sheer scale of what God has made.
Key Words
Two Hebrew words stand out. The word for 'tubes' is 'afiq, which normally means a channel or ravine, a hollowed-out path that water rushes through. Applied to bones, it suggests something hollow but unbreakably strong. The bones are not solid like a rock; they are tubular, like a steel pipe, built to carry enormous weight without snapping.
The metals carry their own weight. Nechushah (bronze) and barzel (iron) were the hardest materials known in Job’s world. Iron was the stuff of tools and weapons, bronze of shields and armor. To say a living creature’s frame is made of these is to say: you cannot break it. You cannot hunt it. You can only stand in awe.
Why does this matter? Because God is not describing a monster to frighten Job. He is describing a part of His creation that stands entirely outside human power. The same God who shaped those bones shaped you. That is not a threat. It is an invitation to trust the One who holds both the beast and you.
How Christians Read This Verse
Most Christian readers see this verse as part of God’s demonstration of His own power. Matthew Henry wrote that God describes Behemoth so Job might 'consider whether he is able to contend with Him who made that beast.' The Cambridge Bible notes the poetry of the description, the creature’s limbs are like pipes of brass and bars of iron. Some interpreters, like Adam Clarke, point to the literal hardness of the hippopotamus’s tusks and bones. Others, such as Keil and Delitzsch, focus on Behemoth as a symbol of raw, untamable strength. Across traditions, the consensus is clear: the verse is not about the animal itself but about the Creator who stands behind it.
A common misunderstanding
A common reading is that God is simply giving a biology lesson, describing a hippopotamus for its own sake. In fact, the description serves a deeper purpose. God is not teaching zoology; He is using the creature’s unmanageable strength to confront Job’s pride. The point is theological: before God’s power, human strength amounts to nothing. The verse is a mirror, not a textbook.
Living This Out
This week, you will face something that feels too strong for you, a problem, a person, a fear that won’t budge. The behemoth is a picture of that. God does not say, “Fix it.” He says, “Look at what I have made. Do you not trust the One who made that?” Let the creature’s unbreakable bones remind you that your Creator is not limited by what limits you. You don’t need to be stronger. You need to let Him be God.
Main takeaway: God’s creation is far stronger than we are, and that is exactly why we can trust Him.
For Families
For ages 5, 8
God made an animal so strong that its bones feel like metal. Nobody can fight that animal. But God made it, so God is even stronger.
For ages 9, 12
This verse describes a huge, powerful beast. God wants Job to see how small he is compared to God’s creation. But that’s not meant to scare us, it’s meant to show us that God is big enough to handle anything we face. We don’t have to be strong; we just have to trust the One who is.
Questions People Ask
Is Behemoth a real animal?
Most Christian interpreters identify Behemoth as the hippopotamus, based on the description of its size, strength, and its habitat near water. Some see it as a symbolic creature representing raw power, but the majority view is that it is a real animal known in Job's world.
What does 'tubes of bronze' mean?
The Hebrew word for 'tubes' ('afiq) usually means a channel or ravine. Here it describes hollow bones that are as strong as bronze, not brittle, but flexible and durable. It emphasizes the creature's unbreakable strength.
Why does God talk about a hippopotamus to a suffering man?
God is not ignoring Job's suffering. He is showing Job that the same God who made this powerful beast is sovereign over all circumstances. If Job cannot control the creature, he cannot control God's purposes. It calls for trust, not answers.
What is the main point of Job 40?
The chapter demonstrates God's power and wisdom through creation. By describing Behemoth, God confronts Job's pride and reminds him that human strength and understanding are limited. The point is to humble us and lead us to trust the Creator.
How does this verse apply to my life today?
When you face situations you cannot control, this verse invites you to remember God's power. The same God who formed a creature of iron-like strength is with you in your weakness. You do not need to be strong; you need to rely on Him.
For pastors & researchers
Hebrew interlinear, 8 commentaries & word study