There are a few reasons why Christians should celebrate Passover. The Lord celebrated Passover [at the Last Supper] the night before his death. He felt it was very important for him and his disciples to be together for the Passover meal. If it's the last few hours of your life on Earth, you want to spend that with family and close friends. You want to show them the love that you have for them. That's what we're doing with Passover.

If God never gave me one more thing in my life, then you, right now, would be enough. You are my Dayeinu

When one gets to Clement or Hippolytus, we are clearly a long way from what we find in Paul and the Gospels, where the influence of the Passover is still strongly present and the meal is seen as a family meal, taken in the home, a memorial meal to remember Jesus’ death until his return...Here then is a cautionary reminder — the less Jewish the approach one takes to the Lord’s Supper, the more likely one is to be wrong about one’s assessment of what is the case about the elements.

Jenny held
her breath wondering whether her matzo would pass muster.

At this juncture it is important to say something about Exodus 12:7. This verse implies that we are dealing with a ritual that did not involve atoning for sin, but rather was a rite of protection for God’s people, a different though not unrelated matter. It involved a blood ritual to avoid God’s last blow against the firstborn. Thus Passover and atonement were not originally associated, though apparently by Jesus’ day there were some such associations. Notice that nothing at all is said or suggested here about Israel’s sin, or about forgiveness. This ceremony is more like an insurance policy. Yes, the blood is to avert divine wrath, but it is not wrath against Israel’s particular sins. In this case they simply happened to be too close to the danger zone, or in the line of fire. We must assume that this blood ritual arose before there even was a fully formed priesthood, for it is highly unusual to have such a ritual without any mention of involvement of priests.

And they killed the passover, and the priests sprinkled the blood from their hands, and the Levites flayed them.