This is what we should be thinking of when we celebrate the Lord’s Supper:
[T]he first purpose of the Passover was to celebrate something that had taken place in the past, the deliverance from Egypt. However, not only did this celebration direct the Israelites’ thoughts backward in time, but it pointed forward to the final Passover, when the perfect Lamb would be sacrificed, ending the sacrificial system once and for all. It was understood that by the blood of that Lamb, the people would experience not merely an exodus out of the bondage of Pharaoh, but an exodus from the bondage of death itself, an exodus that would take them into the Promised Land of heaven.
—R. C. Sproul, The Work of Christ (David C. Cook, 2012), 132.