Joel 2:31 Meaning: Literal or Symbolic Cosmic Signs?
The sun will be turned into darkness, and the moon into blood, before the great and terrible day of Yahweh comes.
The sun shall be turned into darkness, and the moon into blood, before the great and the terrible day of the Lord come.
The sun shall be turned into darkness, and the moon into blood, before the great and terrible day of Jehovah cometh.
The sun is turned to darkness, and the moon to blood, Before the coming of the day of Jehovah, The great and the fearful.
The sun shall be changed to darkness, and the moon to blood, before the great and terrible day of Jehovah come.
Meaning in one sentence
Joel 2:31 describes the sun turning dark and the moon to blood before the Day of the Lord.
Context
The prophet Joel spoke to the people of Judah after a terrible locust plague had stripped the land bare. He called them to repent, and then he spoke of hope: God would restore the years the locusts had eaten and pour out His Spirit on all people. But the promise came with a warning. Before that great day of blessing, there would be signs in the sky. The sun would go dark, the moon would turn the color of blood. These images prepare us for the central announcement: the Day of the Lord is coming, a day that is both terrifying and full of rescue for those who call on God's name.
Key Words
Three phrases carry the weight of this verse. The sun being “turned into darkness” and the moon “into blood” are not meant as a weather report. Throughout the Old Testament prophets, such language describes a world turned upside down by judgment. Isaiah used the same picture for the fall of Babylon and Edom. The point is not the physics of the sky; it is the terror of facing God's holy anger.
The “day of Yahweh” is a central theme. It is not a twenty-four-hour period but a time when God acts decisively to set things right. Joel calls it “great and terrible.” The Hebrew word for terrible carries the sense of inspiring awe and fear. This day is good news for those who trust God, but dreadful for those who do not.
Together, these words show that no human power can stand against God's intervention. The whole creation responds to its Maker.
How Christians Read This Verse
Christians have read this verse in different ways. Many in the early church and the Reformation understood the cosmic language as symbolic of great historical upheavals. Adam Clarke and John Wesley, for example, saw it as describing the destruction of Jerusalem in AD 70, when the Roman army brought fire and blood. Others, including many modern readers, take the signs as literal events that will occur just before Christ's final return.
Peter's sermon on the day of Pentecost shapes how we read these words. He quotes Joel 2:28, 32 and says the prophecy is being fulfilled in his own time. That suggests the “last days” began with the coming of the Spirit. Christians across traditions agree on the main point: the Day of the Lord is real, and it calls for a response of faith.
A common misunderstanding
A common mistake is to read the “blood moon” as a literal prediction of an exact astronomical event, like a particular lunar eclipse. In fact, the language is traditional biblical imagery for judgment. Joel is not giving a schedule for the sky. He is describing the terror of meeting God, a truth that applies to every season of judgment in history and to the final day.
Living This Out
This verse asks you to take the Day of the Lord seriously. The dark sun and blood moon are warnings, but they lead directly to the next verse: “Whoever will call on Yahweh’s name shall be saved.” This week, let the images remind you that God is holy and that judgment is real. But do not stop there. Let them drive you to prayer. Call on His name. That is the purpose of the warning: not to frighten you into hiding, but to send you running to the only safe place.
Main takeaway: The cosmic signs before the Day of the Lord are a call to find refuge in God's salvation, not to live in fear.
For Families
For ages 5, 8
This verse says the sun will get dark and the moon will look red. That sounds scary, but the next verse says that anyone who calls out to God will be saved. God wants us to run to Him.
For ages 9, 12
Joel uses powerful pictures to show how serious God's judgment is. When the sun turns dark and the moon looks like blood, it means something big is happening. But right after this verse, God promises that everyone who calls on His name will be rescued. So the main point is not to be afraid of the signs, but to trust God. He is both the judge and the savior.
Questions People Ask
Is the blood moon in Joel 2:31 literal?
The language of 'the moon into blood' is traditional biblical imagery for judgment. Many Christian interpreters see it as a figurative description of terror and disaster, not necessarily a literal astronomical event. Peter applied it at Pentecost to the events of Christ's first coming.
What does 'the great and terrible day of the Lord' mean?
In the Old Testament, the Day of the Lord is a time when God directly intervenes in history to judge sin and bring salvation. It can refer to specific historical judgments, like the fall of Jerusalem, and also to the final judgment at the end of the age.
How did Peter use Joel 2:31 at Pentecost?
In Acts 2:17-21, Peter quotes Joel 2:28-32, including this verse. He says the outpouring of the Holy Spirit shows that the last days have begun. The cosmic signs point to the Day of the Lord, which Peter sees as starting with Jesus' death, resurrection, and the Spirit's coming.
Is Joel 2:31 about the end of the world or the fall of Jerusalem?
Different traditions interpret this differently. Some see it as a prophecy of the final judgment. Others, like many early Protestant commentators, see it as describing the destruction of Jerusalem in AD 70. Still others understand it as having multiple meanings, referring to both historical judgment and the final one.
For pastors & researchers
Hebrew interlinear, 8 commentaries & word study