Exodus 12:6 "And the entire assembly of the congregation of Israel shall slaughter it"

The holiday of Pesach commemorates the exodus of the Jewish people from Egypt.

They had to be physically freed from slavery.

Most important, they had to remove themselves from the idol worshiping Egyptian culture.

The Egyptians idolized sheep.

HaShem commanded the Jews of Egypt to take that very same symbol of idol worship and use it as a sacrifice.

Each year, we commemorate that event.

We are commanded to bring a sheep to the Beit HaMikdash on the fourteenth day of Nisan in the afternoon.

It is to be sacrificed there amid great rejoicing.