He is wise in heart and mighty in strength — who has hardened himself against him, and succeeded? —
Job 9:4 · ESVView all translations

Job is answering his friend Bildad, and he agrees that God is just — but he says it with a heavy heart. God is wise and strong beyond challenge, so how can any man ever be right with Him?

Where the verse sits in Job's reply

Job's answer runs through several stages. Verse 4 sits in the first one, where he faces God's supremacy.

Job's reply starts quietly, moves on to bitter charges against God, and ends in a wail. It falls into seven parts. In this full survey of his case he sounds all the heights and depths of misery. (1) God supreme; who can contend with Him? (Job 9:1-4). (2) His unstoppable power (verses 5-10). (3) He cannot be reached, and He deals as He pleases (verses 11-24). (4) Job's utter weakness (verses 25-28). (5) Longing for someone to arbitrate between them (verses 29-35).

Samuel Ridout

Job sounds as if he is agreeing with Bildad. One writer hears despair instead.

Although he speaks quietly, there is an intense bitterness in what Job says here. Apparently agreeing with Bildad that God is just, Job says, "Of course He is just, for there is no appeal from whatever He does. He has both wisdom and power, and can crush any useless effort to reason with Him." This is terrible. It is not someone humbly asking God for a reason; it is the hardness of despair — might is right, and God has might on His side.

Samuel Ridout

Wise in heart and mighty in strength

Job had evidence for both words. He points to what God does in creation.

In verse 3 Job admits that even if he wanted to argue his case with God, the odds against him were at least 1000 to one! There was evidence enough that God was wise in heart and mighty in strength. If one hardened himself against God he would certainly not prosper. God could remove mountains by an earthquake. He shakes the earth and makes its steadiest parts tremble. He could also tell the sun not to rise, at least as far as our sight goes, and seal the stars off from view. He alone stretches out the heavens and treads on the waves of the sea. Whether earth or sky or sea, He is in perfect control.

Leslie M. Grant

What "hardened himself" costs

The verse ends with "succeeded" in the ESV, and with "had peace" in older translations. Both point to one result.

"Who has hardened himself against Him, and had peace?" (or, "has prospered"). Job well knew there was neither peace nor prosperity in seeking to refuse obedience to God. Jonah (and you and I) should know this same great truth, and yet how slow we are to learn it!

G C Willis

Why anyone still tries

If resistance never works, why do people still try it?

The folly of rebellion shows up at once: "who has hardened himself against Him and prospered?" The folly is so great that men have to hide from themselves the truth about what they are doing, and the "heart is" indeed "deceitful above all things"... Only one reason can be given for the insanity of rebelling against Him: "the mind that is set on the flesh is hostile to God, for it does not submit to God's law; indeed, it cannot." (Rom. 8:7.) Satan is the determined enemy of the Almighty, and he knows it.

Numerical Bible Notes

A test case in Egypt

One writer applies Job's words to Pharaoh, the king of Egypt who refused to let Israel go.

The frogs died, and Pharaoh hardened, or made heavy, his heart. But "who has hardened himself against Him and has prospered?" (Job 9:4). Job said it, and Pharaoh was no exception to the truth of that ancient saying. And God was not going to waste time with the king. He was in earnest.

C E Stuart

Defiance answers nothing

Verse 4 also rules out one way of dealing with God. What happens to a man who simply defies Him?

Suppose a man takes a defiant attitude and argues his case against God. What then? Disaster, and no justification! Sin has made mankind into rebels, so defying God is their first instinct. But Job saw how ruinous such an attitude would be. God is so infinitely great that no rebel can prosper.

F. B. Hole

The question underneath

The weight then falls on two words in Job's question in verse 2 — "with God." (Older translations read "just with God"; the ESV has "in the right before God.")

There is more emphasis than we are often aware of in this chapter. "How should a man be just with God?" More emphasis on "with God." Man may be just in a certain sense. He may not fail in any way that troubles his conscience in his dealings with other people. But to be just with God is another thing... This chapter works that out, though Job does it in impatience. In the end he arrives at a need — the very need the Saviour met.

J. N. Darby

Summary

- Wise and mighty. God has both wisdom and power, so no argument outwits Him and no force outlasts Him.

- Hardening fails. Harden yourself against God and you lose both peace and prosperity. Jonah and Pharaoh prove it.

- Rebellion is folly. Only one thing explains it: the mind set on the flesh is hostile to God, and the heart is deceitful above all things.

- Defiance justifies no one. Contending with God ends in disaster and leaves a man no closer to being right with Him.

- The need points forward. Job's real question is how to be just with God, and the chapter drives him to a need that the Saviour later met.

Reviewed by Orion on September 5, 2026