Short answer: Jeremiah 33:3 is God's invitation to a prophet in prison, in a city under siege, to ask him about a future that looked impossible. God promises to answer and to disclose things Jeremiah could not otherwise know. It is a real invitation to pray — but the "great things" in view were God's plans to restore a doomed nation, not a blanket guarantee that God will explain whatever we ask.
The World English Bible renders it:
"Call to me, and I will answer you, and will show you great and difficult things, which you don't know." (Jeremiah 33:3)
The context
The chapter's first two verses set a scene most quotations omit. Jeremiah is shut up in the court of the guard. He is a prisoner. Outside the walls, the Babylonian army is besieging Jerusalem, and Jeremiah has spent decades telling the city this would happen.
By every visible measure the story is over: the prophet detained, the capital surrounded, the dynasty finished. Into that, God says call to me.
What follows in Jeremiah 33 is a series of promises — healing brought to the city, fortunes reversed, joy returning to streets about to fall silent, a righteous Branch springing up for David. These are the "great and difficult things." They were not merely unknown to Jeremiah. From inside that cell, they were unimaginable.
What it means, phrase by phrase
"Call to me." The verb is one of urgent address — the cry of someone with no other recourse. God is not asking to be consulted. He is asking to be called upon.
"And I will answer you." The emphasis falls on God's willingness. He initiates. Jeremiah did not petition for a revelation; he was told to ask for one.
"Great and difficult things, which you don't know." English versions diverge instructively. The KJV reads "great and mighty things," the WEB "great and difficult things," others "hidden" or "unsearchable." The underlying Hebrew term is associated with what is fortified or inaccessible — walled off, out of reach. The nuance is not that the things are hard to accomplish, but that they are beyond Jeremiah's reach to discover. Prayer here is not informing God. It is being let in.
Is it a prayer promise for us?
Christians read this differently. Some treat it as a standing promise: God invites all his people to call, and undertakes to answer — pointing to Jesus' own "Ask, and it will be given you" (Matthew 7:7).
Others urge caution. The promise was spoken to a specific prophet about specific disclosures concerning Judah's future. Reading it as a guarantee that God will reveal hidden knowledge to any believer who asks goes beyond what the words commit him to. Deuteronomy 29:29 stands as a counterweight: "The secret things belong to Yahweh our God."
Cross-references
- Jeremiah 33:1–2 — the prison setting that frames the promise.
- Jeremiah 29:11–13 — plans for welfare, and a promise to those who seek with all their heart.
- Matthew 7:7 — "Ask, and it will be given you. Seek, and you will find."
- Deuteronomy 29:29 — the boundary between secret and revealed things.
How to apply it today
The setting is the application. Jeremiah was invited to pray at the moment prayer looked most pointless — no leverage, no freedom, no visible future. God's response was not to change the circumstances but to enlarge the prophet's field of vision. If you are inclined to postpone prayer until you have something more presentable to bring, this verse cuts across that instinct. The cell was the appropriate place from which to call. Jeremiah was not told to call so God could be informed of the siege. He was told to call so that he might be shown.
Frequently Asked Questions
Where was Jeremiah when God said this? He was confined in the court of the guard, as Jeremiah 33:1 states, while the Babylonian army besieged Jerusalem. The invitation to call on God came to a prisoner in a city about to fall.
What are the "great and mighty things" in Jeremiah 33:3? In context they are the promises that follow in the chapter: healing and restoration for Jerusalem, the return of joy to its streets, and a righteous Branch raised up for David. Jeremiah could not have foreseen them from his cell, which is why God calls them things "which you don't know."
Is Jeremiah 33:3 a promise that God will answer any prayer? Christians differ. The promise was addressed to Jeremiah about particular revelations, so treating it as a blanket guarantee stretches it. Many hold that the character it reveals — a God eager to be called upon — applies broadly, while what he chooses to disclose remains his own.