You probably have already seen this, but it just clicked for me.On the day of preparation, the meal consisted of an unblemished lamb, set aside for 4 days, unleavened bread and bitter herbs. The blood of the lamb was used on the doorposts and lentil as a sign of the covering of God. It was applied out of faith and obedience so that death would not befall the first born when the angel of the Lord passed. Bitter herbs represented the bitterness of slavery that Israel faced from the Egyptians. Unleavened bread can be seen in many ways. Leaven typically represents sin, so you could have a sinless item to sustain the body. Later, tradition added 4 glasses of wine to celebrate the new found freedom from slavery.
This is the meal that the Apostles would have had before Jesus died. Jesus would have abstained as He is the first born and would be fasting. Jesus broke the bread and said to “Take, eat; this is my body.” The sinless body that will nourish the believer. John says that Jesus is the Word of God. Jesus rebuked the devil saying:
Mathew 4:4 But he answered, “It is written, “‘Man shall not live by bread alone, but by every word that comes from the mouth of God.'”
Jesus became the Lamb for our sin covering for all times, so lamb was no longer required. Bitter herbs represent the bitter slavery to sin. All sin has been removed forever so it is no longer needed. The wine represents the blood of Christ and we drink to celebrate our freedom from the slavery of sin. Paul later refers to it is as the cup of thanksgiving.
There is so much more imagery and symbolism that is present, but I just wanted to express the epiphany I had on how the two meals were linked and changed on the day of preparation.