The Passover and the Lamb of God — Exodus 12 and John 1:29

Exod 12:21-27 institutes the Passover: a lamb without blemish, its blood on the doorposts, and the LORD passing over the houses so marked. Israel is redeemed by substitutionary blood and a shared meal.

John Calvin — Institutes of the Christian Religion, and Augustine — City of God. John the Baptist names Jesus "the Lamb of God who takes away the sin of the world."

The Passover lamb of Exodus is fulfilled in the Lamb of God of John 1:29 and becomes the framework for the Lord's Supper in 1Cor 11:23-26. Paul says plainly, "Christ our Passover lamb has been sacrificed" in 1Cor 5:7.