When-was-Jonah-written
Short answer: No one can date the book of Jonah with certainty, because the book itself names no author, no king, and no event after the prophet's own mission. The prophet Jonah son of Amittai is anchored to history by 2 Kings 14:23-25, which places him in the reign of Jeroboam II of Israel, roughly the first half of the eighth century BC. Many conservative readers therefore date the book to that century. Others, noting the book's Late Biblical Hebrew, its Aramaic coloring, and its broad concern for Gentiles, place its composition in the Persian or early Greek period, roughly the fifth to third centuries BC. The text's own silence about its writing keeps the question open, and honest teachers should say so.
The prophet is dated, the book is not
The strongest external anchor for Jonah is not in the book of Jonah at all but in 2 Kings. The narrator there summarizes the reign of Jeroboam II and adds that he restored the border of Israel from the entrance of Hamath to the sea of the Arabah, and gives the reason: God had seen the affliction of Israel, and He had not yet said He would blot out the name of Israel, so He saved them by Jeroboam's hand. Then the text names the prophet who had spoken this word.
The relevant line identifies the prophet as Jonah the son of Amittai, the prophet who was from Gath Hepher. That is the same name and patronymic given in Jonah 1:1, where the book opens, Now Yahweh's word came to Jonah the son of Amittai, saying, and then commissions him toward Nineveh. The correspondence is exact. There is no reason to think the Bible refers to two different prophets named Jonah son of Amittai.
What this gives us is a ministry window, not a composition date. Jeroboam II reigned in Samaria for forty-one years, beginning in the fifteenth year of Amaziah king of Judah. That places the prophet's activity in the eighth century BC, most likely in its first half. It does not tell us when someone wrote the book that bears his name. A prophet's ministry and the book about him can be separated by decades or centuries, and the book of Jonah does not say which is the case.
Why many date the book to the eighth century BC
The most natural reading of the book is that it was written by or near the prophet himself, or by a close contemporary, while the events were still remembered. This view has real support. The book opens with the same formula used by other prophetic books, presenting the word of Yahweh coming to a named prophet. Jonah is a historical figure, not a parable figure, because 2 Kings treats him as a real messenger whose prediction came true during a real king's reign.
If the book was written in the eighth century, its message lands with unusual force. Assyria was the rising terror of the ancient Near East. Nineveh was its great city. A Hebrew prophet being sent to announce judgment there, and being angry when the city repents, is a story that fits the eighth-century world of Israel's fear and Assyria's threat. Israel would eventually fall to Assyria in 722 BC, which makes the book's picture of a merciful God and a resentful prophet pointed rather than abstract.
There is also the plain historical detail of the book. It names Nineveh, describes it as an exceedingly great city, and speaks of the king of Nineveh rather than the king of Assyria. None of that is impossible for an eighth-century setting. Defenders of an early date do not need to explain away the book's setting; they accept it as the world in which the prophet actually lived and ministered.
Why others date it later, after the exile
The case for a later date rests mainly on language and themes. The Hebrew of Jonah is often described as Late Biblical Hebrew, with features that appear more frequently in books such as Chronicles, Ezra, Nehemiah, and Esther than in the early prophets. There are also Aramaic-looking forms and expressions that some scholars take as signs of a later hand. If the book were composed in the eighth century, these features are harder to explain, though not impossible, since languages change slowly and a later editor could have updated the text.
The themes of Jonah also read differently after the exile. The book's concern for a pagan city, its critique of a prophet who wants God's mercy limited to his own people, and its openness to Gentile repentance all resonate with the situation of a small post-exilic community that had to think hard about who belonged to Yahweh. Readers who date the book after the exile often see it as a story written to challenge a narrow, ethnocentric faith, using an old prophet as its central character.
This view does not necessarily deny that Jonah existed or that the events happened. A later author could faithfully recount a real earlier mission. The question is about the book's composition, not the prophet's existence. Faithful Christians differ here, and the difference is not a test of orthodoxy.
The sign of Jonah and the question of dating
Jesus referred to Jonah in a way that assumes the story is true history. In Matthew 12:38-41, when the scribes and Pharisees asked for a sign, Jesus answered that no sign would be given except the sign of Jonah, and He compared His own three days and nights to Jonah's time in the fish. He then said the men of Nineveh would rise in judgment and condemn that generation, because they repented at Jonah's preaching, and something greater than Jonah was there.
Luke 11:29-32 records the same teaching. Jesus calls that generation evil, says the only sign given will be the sign of Jonah, and again points to the Ninevites who repented at Jonah's preaching. In both accounts, Jesus treats Jonah as a real prophet, Nineveh as a real city, and the repentance as a real event. He does not say when the book was written, but He does not allow us to treat the story as mere fiction either.
This is important for the dating question. Whatever date we assign to the book's composition, we must not use a late date to dismiss the historicity of the events. A book can be written long after its events and still report them truthfully. The authority of the book rests on God's inspiration, not on a particular century of composition. Jesus' use of Jonah tells us the story is real; it does not tell us the year the scroll was made.
What the book's silence about authorship tells us
Unlike Isaiah, Jeremiah, or Hosea, the book of Jonah does not begin with a claim that Jonah received and wrote down these words. It begins, Now Yahweh's word came to Jonah the son of Amittai, saying, which is a narrative introduction, not an author's signature. The book is told in the third person throughout. Jonah is spoken about, not speaking as the narrator. That does not prove someone else wrote it, but it does mean the book does not settle the question for us.
This silence is not a defect. Hebrew narrative often withholds the author's name. What we have is the word of God given through a prophet, preserved in a book that the church has always received as Scripture. The lack of an explicit author line means we should be modest about our conclusions. We can weigh evidence for an early or late date, but we cannot claim certainty that the text does not give.
A good rule is to separate what is clear from what is disputed. Clear: Jonah was a real prophet in the eighth century BC, and the book reports a real mission to Nineveh. Disputed: whether the book was composed in the eighth century or several centuries later. Clear: the book is Scripture and carries God's authority. Disputed: the exact century of its writing. Teaching both clearly is more honest than pretending the question is closed.
How the date affects how we read the book
If the book is eighth-century, we read it as a prophetic word spoken into the Assyrian crisis, exposing Israel's own hardness of heart while a pagan city repents. The irony is sharp: the prophet of God runs from mercy, and the enemies of God's people receive it. That reading fits the historical moment and makes the book a mirror for Israel before its own judgment.
If the book is post-exilic, we read it as a prophetic word spoken to a restored community tempted to hoard God's grace. The same irony still works, but the target shifts. The book becomes a corrective to a small, beleaguered people who have forgotten that Yahweh's compassion is not limited by national borders. Both readings can be spiritually fruitful, and both can be true in different senses if a later author faithfully applied an earlier prophet's story.
What does not change is the book's central claim. God is merciful and gracious, slow to anger, and abounding in loving kindness, and He relents from disaster. Jonah knew this and hated it. The book ends with God asking Jonah whether he has any right to be angry, and the question hangs in the air. That question is the point, and it lands in every century, whether the scroll was written in 750 BC or 350 BC.
Weighing the evidence honestly
The evidence for an early date is the historical anchor in 2 Kings and the natural fit of the book's setting. The evidence for a later date is the language and the post-exilic feel of its themes. Neither line of evidence is decisive by itself. Hebrew style can be imitated or updated, and themes can be timeless. Scholars who have spent their lives in the text still disagree, which should make us cautious about confident pronouncements.
It also helps to remember what is at stake. If the book was written late, nothing in the Christian faith collapses. God can inspire a later writer to tell a true story about an earlier prophet. If the book was written early, nothing is lost either. The gospel does not depend on the date of Jonah, but on the death and resurrection of Jesus, which Jonah's sign foreshadowed.
For teaching and preaching, the safest course is to say what the text says and to name the disagreement where it exists. We can affirm the prophet's historicity, the reality of the mission, and the authority of the book, while leaving the composition date open. That is not fence-sitting; it is letting the evidence be what it is and letting God be true even when our reconstructions are uncertain.
Biblical fidelity check
The passage establishes that Yahweh's word came to a real prophet named Jonah son of Amittai and sent him to Nineveh. It does not state when the book was written, who wrote it down, or whether the author was Jonah himself. 2 Kings 14:23-25 gives us the prophet's historical window under Jeroboam II. It does not give us a composition date for the book of Jonah. Matthew 12:38-41 and Luke 11:29-32 confirm that Jesus treated Jonah, Nineveh, and the repentance as real, but they do not date the writing either.
A common misreading is to assume that a later date for the book means the events never happened, or that an early date is required for the book to be true. Both moves go beyond the evidence. The text does not tell us the year, and the year does not determine the truth. Another misreading is to treat the absence of an author's name as proof of anonymous invention. Hebrew narrative often omits the author, and omission is not denial. We should say what the text says, no more and no less.
Other passages that speak to Jonah 1:1-2
The prophet's historical setting is filled in by 2 Kings 14:23-25, which names Jonah son of Amittai during Jeroboam II's reign. Jesus' teaching in Matthew 12:38-41 and Luke 11:29-32 treats the sign of Jonah as a real event and a warning to a generation that had something greater and still did not repent. The book's second commission in Jonah 3:1-5 shows Yahweh's word coming to Jonah again and the Ninevites responding, which is the heart of the story. For related studies, see Why trust the Bible when it was written by humans? A Biblical Guide, 1 Kings 1: David Acts as Adonijah Rebels, 1 Kings 10: Solomon's Wisdom and Wealth Tested, and 1 Kings 11: Solomon's Heart Turns and Kingdom Divides.
Frequently asked questions
Who wrote the book of Jonah?
The book does not name its author. It is written in the third person about Jonah son of Amittai, the prophet from Gath Hepher mentioned in 2 Kings 14:25. Jewish and Christian tradition has often held that Jonah himself wrote it, but the text does not say so. It could have been written by Jonah, by a disciple, or by a later author who faithfully preserved the story. Because the book is silent, we should be honest that we do not know, while affirming that it is inspired Scripture.
When was the book of Jonah written?
Estimates range from the eighth century BC, during or shortly after Jonah's ministry under Jeroboam II, to the fifth or third century BC, after the exile. The earlier date fits the historical setting in 2 Kings. The later date is argued from Late Biblical Hebrew, Aramaic features, and the book's concern for Gentiles. No external evidence fixes the date, and faithful Christians differ. The book itself does not tell us, so certainty is not available.
If Jonah was written late, does that make the story untrue?
No. A book can be composed long after the events it reports and still report them truthfully. Luke wrote his Gospel decades after Jesus' life, and it is true. If a later author used the prophet Jonah's real mission to teach Israel about God's mercy, the events could still have happened. Jesus treated Jonah and the Ninevites as real in Matthew 12:38-41 and Luke 11:29-32. The date of writing does not decide the truth of the account.
