Matthew 26:2
Two days before Jesus fulfilled the Passover, He prepares His disciples for His death by telling them that after two days would be the Passover and that the Son of Man would be delivered up and crucified. Thus, He was crucified on the Passover. For further proof of that, John shows that it was preparation day for a high day, the first day of Unleavened Bread (John 19:31). Obviously, preparation day for the first day of Unleavened Bread is the day of Passover, the fourteenth day of Nisan/Abib.
Christ is specifically named as "our Passover" in I Corinthians 5:7. Jesus is called "the Lamb slain from the foundation of the world" (Revelation 13:8). John the Baptist, when he first saw Him after He began His ministry, as He approached the River Jordan for baptism, said, "Behold! The Lamb of God who takes away the sin of the world" (John 1:29). It is easy to see the strong connection between Jesus and the lamb killed at Passover.
Richard T. Ritenbaugh
Christ's Death, Resurrection, and Ascension