Sign of Jonah

Biblical Text and Content

The sign of Jonah appears in Matthew 12:38–41 and 16:1–4 and in Luke 11:29–32. In Matthew 12, the scribes and Pharisees ask Jesus to show them a sign from heaven; in chapter 16, the Pharisees and Sadducees make the same demand. Jesus answers, "An evil and adulterous generation seeketh after a sign; and there shall no sign be given to it, but the sign of the prophet Jonas" (Matthew 12:39). The parallel scene in Mark 8:11–12 makes no mention of Jonah and records only the words "There shall no sign be given unto this generation."

Background

A "sign" is a mark or token that reveals God's will or power. In Greek, the original language of the New Testament, the word is sēmeion. Jonah appears in 2 Kings 14:25 as a prophet active during the reign of Jeroboam II. In the Book of Jonah, he spends three days and three nights in the belly of a great fish (Jonah 1:17) and then goes to Nineveh, the great city of Assyria, to proclaim judgment; the people of Nineveh repent (Jonah 3:10).

Significance in Scripture as a Whole

The Gospels explain this sign in two ways.

• Matthew: Just as Jonah was three days and three nights in the belly of the great fish, so the Son of Man will be three days and three nights in the heart of the earth (Matthew 12:40). This is read as a reference to Jesus' death, burial, and resurrection.
• Luke: "For as Jonas was a sign unto the Ninevites, so shall also the Son of man be to this generation" (Luke 11:30). Here the emphasis falls on the preacher himself as the sign.

Both Gospels go on to say that the people of Nineveh, who repented at Jonah's preaching, and the queen of the south, who came to hear the wisdom of Solomon, will condemn this generation at the judgment (Matthew 12:41). The contrast is that even Gentiles repented, whereas the generation standing before one "greater than Jonas" does not. The passage is also read alongside Paul's statement that "the Jews require a sign," while he preaches Christ crucified (1 Corinthians 1:22–25).

Interpretation and Points of Debate

• The content of the sign: Some interpretations emphasize the resurrection, while others emphasize the proclamation calling for repentance. Many interpretations hold both aspects together. The difference between the two Gospels is discussed in connection with the Synoptic Problem.
• "Three days and three nights": The traditional understanding is that Jesus died on Friday and rose on Sunday. To the objection that this timeline does not add up to three days and three nights, many interpreters appeal to the Jewish method of reckoning days, in which part of a day was counted as a whole day. A minority argues that the crucifixion took place on Wednesday or Thursday.
• Historicity of the Book of Jonah: Conservative interpreters hold that Jesus cited Jonah as a real person, and they read the Book of Jonah as a historical record. Other scholars read the book as a didactic story while still regarding Jesus' citation of it as meaningful.
• The whale story: The text says only "a great fish." Claims that identify it definitively as a whale, or that cite as evidence modern anecdotes of people allegedly swallowed by whales who survived, are additions not found in the biblical text, and their factual accuracy has not been verified.

In the Korean Church

The saying is frequently cited in Easter sermons as a prediction of Jesus' resurrection. It is also used as a sermon text to warn against a faith that chases after miracles or experiences and to call for repentance before the Word.