A feast of the Lord
The Feast of Unleavened Bread
The feast in Israel
The Feast of Unleavened Bread began the day after Passover and ran a full week, so closely joined to Passover that the two were often spoken of as one. For seven days no leaven, no yeast, could be found in an Israelite home. The bread was flat and plain, the same bread of affliction the people had eaten as they fled Egypt with no time to let their dough rise. The feast preserved the memory of that sudden departure, but it also carried a moral weight. Leaven, which works quietly through a whole lump, became a picture of how corruption spreads. To purge it from the house for a week was to enact a cleansing, a fresh start, a life set apart from the old bondage. Redemption at Passover was to be followed by a swept and holy life.
“And on the fifteenth day of the same month is the feast of unleavened bread unto the LORD: seven days ye must eat unleavened bread.”Leviticus 23:6
How it was kept
Leviticus commands that on the fifteenth day of the first month the feast begins, and for seven days the people eat unleavened bread. The first day and the seventh day are holy convocations, days of sacred assembly on which no ordinary work is to be done. Throughout the week offerings made by fire are brought to the Lord. Exodus adds the sharp requirement behind the practice: all leaven must be removed from the house, and anyone who eats what is leavened during those days is cut off from the congregation. So the week was marked by plain bread, holy gatherings, and a thorough purging of every trace of yeast.
How Christ fulfills it
Paul reaches for this feast to describe the Christian life. Having called Christ our Passover, he tells the church to keep the feast, not with the old leaven of malice and wickedness but with the unleavened bread of sincerity and truth. Here the link is real but it is applied rather than declared as prophecy. The New Testament does not say Christ fulfilled Unleavened Bread the way it says he is our Passover. Instead it takes the feast's logic and presses it into the church: the leaven of sin must be purged out because we have already been redeemed. Some also see Christ's sinless body, laid in the tomb through those very days, as the true bread without corruption. That is a fitting meditation, though Scripture leaves it as a resonance rather than a stated fulfillment.
“Therefore let us keep the feast, not with old leaven, neither with the leaven of malice and wickedness; but with the unleavened bread of sincerity and truth.”1 Corinthians 5:8
Why it matters
This feast guards us from a shallow gospel. Passover rescues us, but Unleavened Bread insists that the rescued are meant to be a clean people. Paul does not let the church rest in forgiveness while nursing old malice. Because Christ has redeemed us, we sweep the house. The point is not anxious self-scrutiny but a settled refusal to let small corruptions work quietly through the whole of a life. Sincerity and truth are to replace them. So the feast turns grace into a way of living, showing that being saved and being made holy were never meant to come apart.
Questions people ask
What does leaven symbolize in the Bible?
Leaven often pictures how a small influence spreads through the whole, and in Paul's use it stands for sin and hypocrisy working quietly through a life or a church. Not every mention is negative, but at this feast the removal of leaven signified purging corruption. Paul applies it directly: replace the old leaven of malice with sincerity and truth.
How is Unleavened Bread different from Passover?
Passover was the single evening of the lamb's death and the blood on the doorposts; Unleavened Bread was the seven days that followed, marked by plain bread and the purging of yeast. They were joined so tightly that people spoke of them together, yet each carried its own meaning: rescue first, then a cleansed and separated life.