Feast Days Series — Study 2
Did Jesus Mean the Feast of Trumpets When He Said “No One Knows the Day or Hour”?
This may be one of the most interesting studies in our series because it involves a claim that sounds convincing when first heard.
The argument is that the Feast of Trumpets began with the sighting of the new moon, making its exact beginning uncertain. Some therefore suggest that Jesus' words in Matthew 24:36 were a familiar reference to that festival.
But we need to investigate two separate questions: Was that expression actually used for the Feast of Trumpets in Jesus' time? And does Matthew's context support that interpretation?
We'll present the argument fairly, examine the historical evidence, and then work through Jesus' words in their biblical context.
DID JESUS MEAN THE FEAST OF TRUMPETS WHEN HE SAID “NO ONE KNOWS THE DAY OR HOUR”?
Feast Days Series — Study 2
TEXT B4 TRADITION — Read First. Conclude Later.
Did Jesus Give His Disciples a Hidden Clue?
Jesus told His disciples that no one knows the day or hour except the Father (Matthew 24:36).
Most readers understand this as a warning against trying to determine the time of His return.
But some Bible students suggest something quite different.
They believe Jesus was referring to the Feast of Trumpets, an annual festival observed on the first day of Israel's seventh month.
Their argument is interesting.
Because the beginning of the month depended upon observing the new moon, the precise day of the festival could be uncertain in advance.
They suggest that the expression “no one knows the day or hour” was a familiar way of referring to this festival.
If that is correct, perhaps Jesus was giving His disciples a clue about the timing of His return.
But is that what Jesus meant?
Before deciding, we need to examine the festival, the historical evidence, and the words Jesus actually spoke.
1. What Was the Feast of Trumpets?
Leviticus 23:23–25 commands Israel to observe the first day of the seventh month as a day of rest, remembrance, trumpet blasts, and sacred assembly.
Numbers 29:1–6 provides additional instructions concerning sacrifices.
The festival was established by God.
It was not something Israel invented.
But notice what Leviticus does not say.
It does not identify the festival as the day of Christ's return.
It does not mention a future rapture.
And it does not call the festival “the day and hour no one knows.”
Those are connections proposed through later interpretation.
That doesn't automatically make them wrong.
But we need evidence before accepting them.
2. What About the New Moon?
Here the argument has a genuine historical foundation.
Ancient Jewish calendar practices involved observing the new moon.
The Mishnah, a collection of Jewish traditions compiled around AD 200, describes witnesses reporting the appearance of the new moon to a court.
The witnesses were questioned about what they had seen.
When their testimony was accepted, the new month could be formally declared.
The Mishnah also describes circumstances in which uncertainty about the new moon affected the observance of the festival.
This is important evidence.
It shows that the calendar question was real.
But we must distinguish between two claims.
Claim one: The beginning of the month could involve uncertainty.
There is historical evidence for that.
Claim two: “No one knows the day or hour” was a recognized name for the Feast of Trumpets in Jesus' day.
That requires additional evidence.
The first claim does not automatically establish the second.
3. Was It Really Called “The Day No One Knows”?
This is the central historical question.
The Jewish sources we examined describe new-moon witnesses, calendar procedures, and occasions when the festival was observed over two days.
But those passages do not establish that the exact expression “no one knows the day or hour” was a recognized first-century name for the Feast of Trumpets.
We should be careful here.
Absence of evidence in the sources examined does not prove that no one ever used such an expression.
But neither does it permit us to present the expression as an established historical fact.
If someone claims that Jesus was using a familiar Jewish idiom, a reasonable question is:
Where is that idiom documented, and how early is the evidence?
Until that question is answered, the proposed connection remains a possibility rather than an established explanation.
4. What Did Jesus Actually Say?
Now return to Matthew 24.
In verse 36 Jesus says that the day and hour are unknown except to the Father.
What does He say next?
He compares the coming of the Son of Man to the days of Noah.
People were carrying on their ordinary activities.
They were eating, drinking, marrying, and giving in marriage.
Then the flood came.
Jesus emphasizes their lack of awareness.
He continues with examples of people working in fields and grinding grain.
Then He gives His conclusion in verse 42:
His disciples must remain watchful because they do not know when their Lord is coming.
He illustrates the same point with a homeowner who does not know when a thief will arrive.
Finally, in verse 44, Jesus again emphasizes readiness because the Son of Man comes at an unexpected hour.
Notice the repeated emphasis.
Not knowing. Watching. Being ready.
Jesus does not mention the Feast of Trumpets anywhere in this explanation.
Nor does He direct His disciples to watch the Jewish calendar.
His illustrations emphasize the unexpected nature of the event and the necessity of readiness.
5. What Does Mark Tell Us?
Mark 13:32–37 records a parallel teaching.
Jesus again says that no one knows the day or hour except the Father.
He then tells His disciples to remain alert.
He compares their situation to servants whose master has gone away.
They do not know when he will return.
The point is not that they can identify the correct festival but cannot determine the precise hour.
The point is that they must remain ready because the master's arrival is unknown.
Mark's account reinforces the natural meaning of Matthew's passage.
6. What About the Trumpet at Christ's Return?
There certainly are trumpet references associated with the resurrection and Christ's coming.
Paul mentions the trumpet of God in 1 Thessalonians 4:16.
He refers to the last trumpet in 1 Corinthians 15:52.
Matthew 24:31 also describes a great trumpet accompanying the gathering of the elect.
These passages deserve careful examination.
But we must ask whether the appearance of a trumpet in two different passages means that both refer to the same annual festival.
Trumpets had several purposes in Israel's history.
They could announce an assembly, signal movement, warn of danger, or accompany worship.
The presence of a trumpet does not, by itself, identify the Feast of Trumpets.
That question deserves its own study, which will be next in this series.
7. Does Jesus Want Us to Calculate or Remain Ready?
This brings us to the practical meaning of the passage.
Suppose Jesus really was alluding to the Feast of Trumpets.
Would that change the command He gives His disciples?
No.
He still tells them to watch.
He still says they do not know the day or hour.
And He still warns that the event will be unexpected.
There is a difference between recognizing a possible historical allusion and turning that allusion into a prediction about the timing of Christ's return.
Jesus' instruction is unmistakable.
Be ready because you do not know when He will come.
Our Conclusion
The historical connection between the Feast of Trumpets and the new moon is real.
The uncertainty involved in observing the new moon is also historically documented.
But the evidence examined does not establish that “no one knows the day or hour” was a recognized name for the festival in Jesus' day.
More importantly, Matthew 24 and Mark 13 explain Jesus' words through examples of unexpected arrival and constant readiness.
We should therefore be cautious about turning His warning against date-setting into a hidden clue for identifying the date.
The interpretation is interesting.
But an interesting interpretation must still be tested against the text.
Read First. Conclude Later.
GOING DEEPER
A Closer Examination of Matthew 24:36–44
Verse 36 — The Day and Hour Unknown
Jesus states that knowledge of the day and hour belongs to the Father.
The Greek wording refers to knowing the day and hour.
Nothing in the expression itself identifies a particular festival.
The phrase must therefore be understood through its context.
There is also a textual variation concerning the words “nor the Son.” They appear in important early manuscripts and in Mark 13:32, although some manuscripts of Matthew omit them.
That textual question does not change the central point: the timing is not disclosed to the disciples.
Verses 37–39 — The Days of Noah
Jesus compares the coming of the Son of Man to the days before the flood.
Ordinary life continued until judgment arrived.
His emphasis is not that eating or marrying were sinful activities.
Rather, people continued their lives without recognizing what was approaching.
The comparison supports His warning about unexpected judgment.
Verses 40–41 — Two People, Different Outcomes
Jesus describes two people working together, with one taken and the other left.
These verses are frequently used to support a particular rapture interpretation.
But the immediate comparison is with Noah's flood.
That context must be considered before deciding whether being taken means rescue or judgment.
The passage clearly describes a decisive separation.
It does not identify that separation with the Feast of Trumpets.
Verse 42 — Watch Therefore
Jesus draws His conclusion.
The disciples must remain watchful because they do not know when their Lord will come.
This is the practical application of verse 36.
A proposed interpretation that shifts attention from readiness to calculating a festival date must explain why Jesus repeatedly emphasizes uncertainty.
Verse 43 — The Thief
Jesus compares the unexpected arrival to a thief coming at an unknown time.
A homeowner who knew the hour would be prepared to prevent the burglary.
But the homeowner does not know.
The illustration reinforces the warning.
Jesus is not offering a calendar calculation.
He is explaining why continual readiness is necessary.
Verse 44 — An Unexpected Hour
Jesus repeats the central point.
The Son of Man comes at an hour His disciples do not expect.
This statement is particularly difficult to reconcile with the claim that Jesus was secretly identifying a predictable annual festival.
One could propose that the precise hour remains unknown even if the festival is identified.
But that explanation must be demonstrated rather than assumed.
The natural progression of Jesus' teaching emphasizes uncertainty, watchfulness, and readiness.
GOING DEEPER
What Does Jewish History Actually Establish?
The Mishnah and New-Moon Witnesses
Mishnah Rosh Hashanah 2:6 describes how witnesses were examined concerning the new moon.
Their testimony was compared before the month was declared.
This supports the historical claim that the calendar involved observation and official confirmation.
The Possibility of Two Festival Days
Mishnah Rosh Hashanah 4:4 describes circumstances in which the festival was observed over two days because of procedures surrounding the arrival of witnesses.
This supports the claim that uncertainty could affect the festival's observance.
However, the Mishnah was compiled long after Jesus' earthly ministry.
Although it preserves traditions from earlier periods, each historical claim must be evaluated carefully.
We should not automatically assume that every practice described in the Mishnah operated identically during Jesus' lifetime.
The Missing Link
What remains to be demonstrated is that the specific expression “no one knows the day or hour” was an established first-century designation for the Feast of Trumpets.
The sources examined establish the calendar background, not that proposed idiom.
This is the distinction on which the historical argument depends.
Continue Exploring Scripture
Previous study: Are Israel's Seven Feasts a Prophetic Timetable?
https://text-b4-tradition.com/prophetic-timetable
Next study: What Did Paul Mean by the Last Trumpet?
We'll examine 1 Corinthians 15:51–52, 1 Thessalonians 4:13–18, and the proposed connection between the last trumpet and the Feast of Trumpets.
Related studies
Christ Returns Tomorrow — Why readiness matters more than predictions.
What Does the Bible Actually Say About the End? — Examining prophetic claims in context.
How to Study the Bible — Learning to distinguish historical evidence from interpretive assumptions.
TEXT B4 TRADITION
Read First. Conclude Later.
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