1st Corinthians 10.4
4 And did all drink the same spiritual drink: for they drank of that spiritual Rock that followed them: and that Rock was Christ.
The Passover lamb was the animal God directed the Israelites to use as a sacrifice in Egypt on the night God struck down the firstborn sons of every household (Exodus 12:29). This was the final plague God issued against Pharaoh, and it led to Pharaoh releasing the Israelites from slavery (Exodus 11:1). After that fateful night, God instructed the Israelites to observe the Passover Feast as a lasting memorial (Exodus 12:14).
God instructed every household of the Israelite people to select a year-old male lamb without defect (Exodus 12:5; cf. Leviticus 22:20-21). The head of the household was to slaughter the lamb at twilight, taking care that none of its bones were broken, and apply some of its blood to the tops and sides of the doorframe of the house. The lamb was to be roasted and eaten (Exodus 12:7-8).
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God also gave specific instructions as to how the Israelites were to eat the lamb, “with your cloak tucked into your belt, your sandals on your feet and your staff in your hand” (Exodus 12:11; cf. Ephesians 6:14). In other words, they had to be ready to travel.
God said that when He saw the lamb’s blood on the doorframe of a house, He would “pass over” that home and not permit “the destroyer” (Exodus 12:23) to enter. Any home without the blood of the lamb would have their firstborn son struck down that night (Exodus 12:12-13).
The New Testament establishes a relationship between this prototypical Passover lamb and the consummate Passover Lamb, Jesus Christ (1 Corinthians 5:7). The prophet John the Baptist recognized Jesus as “the Lamb of God” (John 1:29), and the apostle Peter links the lamb without defect (Exodus 12:5) with Christ, whom he calls a “lamb without blemish or defect” (1 Peter 1:19).
Jesus is qualified to be called One “without blemish” because His life was completely free from sin (Hebrews 4:15). In Revelation, John the apostle sees Jesus as “a Lamb, looking as if it had been slain” (Revelation 5:6). Jesus was crucified during the time that the Passover was observed (Mark 14:12).
