Passover and the Feast of Unleavened Bread are two distinct observances that appear side by side in the biblical calendar, are often discussed in the same sentence, and are commonly confused with each other.
The confusion is understandable.
By the time of Jesus, the terms were sometimes used interchangeably.
The Gospel writers describe the Passover week in ways that blur the boundary between the two.
But they began as separate institutions with distinct origins, distinct meanings, and distinct rituals.
Understanding the difference between them is essential for reading the Old Testament calendar correctly, following the New Testament references accurately, and seeing what both observances were pointing toward in Christ.
What Passover Was: The Feast of One Night
The Origin of Passover
Passover was established on a single night in Egypt.
God gave Moses the instructions in Exodus 12, and the event they commemorated was the tenth and final plague: the death of every firstborn in Egypt.
Each Israelite household was commanded to take an unblemished lamb, kill it at twilight, and apply its blood to the doorposts and lintel of their home.
“For I will pass through the land of Egypt that night, and I will strike all the firstborn in the land of Egypt, both man and beast; and on all the gods of Egypt I will execute judgments: I am the LORD. The blood shall be a sign for you, on the houses where you are. And when I see the blood, I will pass over you, and no plague will befall you to destroy you, when I strike the land of Egypt.” — ESV, Exodus 12:12–13
The blood was the sign. The death angel passed over every household covered by the blood of the lamb.
When Passover Was Observed
Passover was observed on the fourteenth day of the first month, which the Law called Nisan or Abib, corresponding roughly to March or April.
“In the first month, on the fourteenth day of the month at twilight, is the LORD’s Passover.” — ESV, Leviticus 23:5
It was a single event: the killing of the Passover lamb at twilight on the fourteenth of Nisan.
The lamb was then eaten that night with unleavened bread and bitter herbs, before morning arrived. Nothing of the animal was to remain until morning, and any leftover was to be burned.
What Passover Commemorated
Passover commemorated the night of the exodus itself, the moment God’s judgment passed over Israel because of the blood and fell on Egypt.
It was an annual reenactment of the rescue from slavery, a structured act of corporate memory designed to pass the story from one generation to the next.
“And when your children ask you, ‘What does this ritual mean to you?’ then you shall say, ‘It is the sacrifice of the LORD’s Passover, for he passed over the houses of the people of Israel in Egypt, when he struck the Egyptians but spared our houses.'” — ESV, Exodus 12:26–27
What the Feast of Unleavened Bread Was: Seven Days of Different Food
The Origin and Duration
The Feast of Unleavened Bread was a separate, seven-day observance that began the day after Passover.
“And on the fifteenth day of the same month is the Feast of Unleavened Bread to the LORD; for seven days you shall eat unleavened bread.” — ESV, Leviticus 23:6
Passover was on the fourteenth. Unleavened Bread began on the fifteenth and ran through the twenty-first of Nisan.
Seven days. No leaven anywhere in the household.
“Seven days you shall eat unleavened bread. On the first day you shall remove leaven out of your houses, for if anyone eats what is leavened, from the first day until the seventh day, that person shall be cut off from Israel.” — ESV, Exodus 12:15
The severity of the command to remove leaven signals how seriously God regarded the distinction. Anyone who ate leavened bread during those seven days was to be cut off from the community.
What Unleavened Bread Commemorated
The Feast of Unleavened Bread commemorated the haste of the departure from Egypt.
When the night of Passover ended, and Pharaoh released Israel, they left so quickly that there was no time for bread to rise.
“And they baked unleavened cakes of the dough that they had brought out of Egypt, for it was not leavened, because they were thrust out of Egypt and could not wait, nor had they prepared any provisions for themselves.” — ESV, Exodus 12:39
The flat bread was not symbolic theology attached to the event afterward. It was the actual food they ate on the actual night because speed was a necessity.
The annual feast preserved the memory of that urgency.
What Leaven Represented
Leaven in Scripture consistently represents something that permeates and works through what it touches. Most often, it represents sin, corruption, or the influence of what is spiritually impure.
The removal of leaven from the household was not merely an agricultural act. It was a spiritual metaphor for the removal of corruption from the life of the covenant community.
Paul picked up exactly this language when he applied the feast to Christian living.
“Cleanse out the old leaven that you may be a new lump, as you really are unleavened. For Christ, our Passover lamb, has been sacrificed. Let us therefore celebrate the festival, not with the old leaven, the leaven of malice and evil, but with the unleavened bread of sincerity and truth.” — ESV, 1 Corinthians 5:7–8
How They Were Distinct and How They Were Connected
Distinct Origins, Distinct Rituals
Passover and the Feast of Unleavened Bread began in the same night’s events but were established as distinct observances.
Passover was a single evening: the sacrifice of the lamb, the application of blood, and the meal eaten in haste with sandals on and staff in hand.
Unleavened Bread was a seven-day communal observance beginning the next day, involving the complete removal of leaven from the home and the eating of flat bread throughout the week.
Passover had no assembly requirements beyond the household gathering for the meal.
Unleavened Bread included sacred assemblies on the first and seventh days, during which no regular work was to be done.
“On the first day you shall have a holy assembly, and on the seventh day a holy assembly.” — ESV, Exodus 12:16
Connected by Timing and Purpose
Because Passover on the fourteenth immediately preceded Unleavened Bread beginning on the fifteenth, they operated as a continuous unit in the festival calendar.
By the period of the New Testament, Jewish practice had merged the naming conventions to the point where “the Passover” could refer to the entire eight-day period from the fourteenth through the twenty-first.
This explains why the Gospels sometimes describe the Feast of Unleavened Bread as beginning or refer to the whole week under the name Passover.
“It was the Feast of Unleavened Bread, which is called the Passover.” — ESV, Luke 22:1
Luke uses the names interchangeably because by his time, they had become practically synonymous in common usage, even though the original institutions were technically distinct.
How Both Observances Point to Christ
The Passover Lamb and Jesus
Paul’s statement in 1 Corinthians 5:7, “Christ, our Passover lamb, has been sacrificed,” is the New Testament’s explicit connection.
Jesus was crucified during the Passover season, and John’s Gospel is careful to date the events in ways that connect his death to the killing of the Passover lambs.
John 19:36 applies Exodus 12:46 to Jesus: “Not one of his bones will be broken.” The Passover lamb was to have no broken bones, and the soldiers did not break Jesus’ legs because he was already dead.
The blood of the Passover lamb caused the death angel to pass over each household. The blood of Christ causes the judgment of God to pass over every person whose life is covered by it.
The Unleavened Bread and the Sinless Life
Jesus called himself the bread of life in John 6. He was the living bread that came down from heaven.
Unleavened bread, free from the corrupting influence of leaven, points to the sinless life of Christ, uncontaminated by the malice and evil that leaven represents.
Paul’s application of the feast in 1 Corinthians 5 extends it to the life of the Christian community: having received the benefit of Christ’s sacrifice, the community is called to purge the leaven of sin from its midst and live in sincerity and truth.
The feast was not merely a historical commemoration but a repeated call to holiness rooted in the finished work of the one who was himself unleavened.
Frequently Asked Questions About Passover and Unleavened Bread
What is the difference between Passover and Unleavened Bread?
Passover was a single-night observance on the fourteenth of Nisan commemorating the blood of the lamb protecting Israel from the death angel. The Feast of Unleavened Bread was a seven-day observance beginning on the fifteenth, requiring the removal of all leaven from homes and eating flat bread to remember the hurried departure from Egypt.
Why do the Gospels sometimes use Passover and Unleavened Bread interchangeably?
By the time of Jesus, Jewish practice had merged the terminology so that either name could refer to the entire eight-day festival period. Luke 22:1 explicitly equates them. This reflects common usage of the period rather than theological confusion, though the original Mosaic law established them as technically distinct observances.
What does leaven symbolize in the Bible?
Leaven consistently symbolizes a permeating, corrupting influence. Jesus used it to describe the teaching of the Pharisees and Sadducees in Matthew 16:6. Paul applies it to malice and evil in 1 Corinthians 5:8. The removal of leaven from the household during Unleavened Bread carries this symbolic weight, calling the community to purge moral and spiritual corruption.
How does Passover connect to Jesus Christ?
Paul states explicitly in 1 Corinthians 5:7 that Christ is our Passover lamb who has been sacrificed. John’s Gospel carefully dates the crucifixion to align with the Passover season and applies the Passover regulation about unbroken bones to Jesus in John 19:36. The blood of the original lamb that caused death to pass over foreshadows the blood of Christ that turns away God’s judgment.
Are Christians required to observe Passover or the Feast of Unleavened Bread?
The New Testament does not command Gentile Christians to observe these festivals. Paul warns in Galatians 4:10 and Colossians 2:16–17 against treating the festivals as obligatory for justification. However, understanding them is essential for grasping the theological depth of Christ’s work, and some Christian traditions observe them for their rich symbolic value.
Lord, Let the Lamb’s Blood and the Unleavened Life Be What Defines Me
Father, Passover and Unleavened Bread were not merely annual rituals for a nation in a particular time.
They were the advance disclosure of everything you would accomplish through your Son.
The blood that caused the death angel to pass over every doorpost in Egypt was pointing toward the blood that causes your judgment to pass over every life covered by Christ.
The unleavened bread eaten in haste by people on their way out of slavery was pointing toward the sinless life of the one who is himself the bread of life.
Let me not receive these realities casually.
Cleanse out of me the old leaven: the malice, the pride, the sin I have grown comfortable with.
And let me live in the unleavened bread of sincerity and truth because the Passover lamb has already been sacrificed.
In Jesus’ name, amen.
Scholarly and Theological References
Sarna, N. M. (1991). Exodus: The JPS Torah commentary. Jewish Publication Society.
Wenham, G. J. (1979). The book of Leviticus: New International Commentary on the Old Testament. Eerdmans.
Carson, D. A. (1991). The Gospel according to John: Pillar New Testament Commentary. Eerdmans.
Keener, C. S. (1993). The IVP Bible background commentary: New Testament. InterVarsity Press.
Schreiner, T. R. (2003). Paul, apostle of God’s glory in Christ: A Pauline theology. InterVarsity Press.
Thiselton, A. C. (2000). The first epistle to the Corinthians: New International Greek Testament Commentary. Eerdmans.
Levine, B. A. (1989). Leviticus: The JPS Torah commentary. Jewish Publication Society.
Hartley, J. E. (1992). Leviticus: Word Biblical Commentary. Thomas Nelson.
