In Exodus, 12:1–28 each Israelite family is commanded to sacrifice a lamb so that the final plague (the death of the firstborn) will pass over their houses, and the final verses cited above ask that this become an annual ritual in commemoration of the first Passover. So, for as long as the Temple in Jerusalem was in operation, Jews made Passover sacrifices, with each family bringing a lamb and then taking home a good part of the meat to eat at dinner after the sacrifice. This meal, where the sacrifice was eaten "with matzah (unleavened bread) and bitter herbs" is the origin of today's Passover Seder. Note that the Passover sacrifice was not a sin sacrifice. If anything, it was a Thanksgiving sacrifice, made to thank God for the the salvation of the Israelites from Egyptian bondage.
The Sacrifice of the Mass
The Passover Lamb
There is no sacrifice without the Temple.
It represents the Pascal sacrifice.
Yes they do!
Mass
A lamb.
By eating unleavened bread, and offering the Passover sacrifice, as commanded by God (Exodus ch.12).
He could not partake of the Passover sacrifice (Rashi and Lekach Tov on Exodus 12:48) which was offered while the Temple stood. He could, however, conduct the Passover Seder (ceremonial meal) as Jews do today.
It was the Feast of the Passover, a traditional gathering with food. Jesus used the symbolism as He became Our Passover - a blood sacrifice that could and does forgive sin and the guilt of it.
The first sacrifice for Paysach (Passover) was the year that the Jews left Egypt.
They ate the sacrifice as commanded (Exodus ch.12) and prepared to leave Egypt.