Passover remembers the night before the Jewish people escaped slavery in Egypt. It is significant because it shows how the event which saved them and symbolises freedom.
The first two days and last two days are public holidays, with holiday meals. Jewish people don't go to work, drive, write, or switch on or off electric devices. It also involves a full spring-cleaning to get rid of all yeast!
Video: Holy Days (duration 5:41)
Spring
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Winter
Festivals and Holy Days - Britannica
21 When the Lord goes through the land to strike down the Egyptians, he will see the blood on the top and sides of the doorframe and will pass over that doorway. (Exodus 12:21)
Read full passage - Exodus chapter 12 (3 minutes)
The next day John [the Baptist] saw Jesus coming towards him and said, ‘Look, the Lamb of God, who takes away the sin of the world! (John 1:29)
Now the Festival of Unleavened Bread, called the Passover, was approaching, 2 and the chief priests and the teachers of the law were looking for some way to get rid of Jesus, for they were afraid of the people. (Luke 22:1-2)
Read full passage - Luke 22:1-23 (2 minutes)
All of the foods eaten are symbolic. These include:
They are often memorised by children in a Hebrew rhyme: