“Therefore purge out the old leaven,
that you may be a new lump,
since you truly are unleavened.
For indeed Christ, OUR PASSOVER, was sacrificed for us.
Therefore let us KEEP THE FEAST, not with old leaven,
nor with the leaven of malice and wickedness,
but with the unleavened bread of sincerity and truth.”
1st Corinthians 5:7-8

Before Passover begins, the Jews do a thorough search in their homes to make sure every single bit of leaven is found and removed. Leaven is the symbol of sin. This is a picture of how believers should approach Christ, searching their hearts for any evil thing, getting rid of malice and wickedness, and approaching Christ in all sincerity and truth, recognizing that we are celebrating Christ who is OUR PASSOVER lamb, whose body was striped and pierced as the matzah is, and whose blood was shed for the forgiveness of our sins. It’s a time of bringing this to our remembrance as we partake of the unleavened bread and the wine.

Let us clean our “house” as it were, and repent of the sin which so easily besets us.

“…knowing that you were not redeemed with corruptible things,
like silver or gold,
from your aimless conduct received by tradition from your fathers,
but with the precious blood of Christ,
as of a Lamb without blemish and without spot.”
1st Peter 1:18-19