Now the Festival of Unleavened Bread arrived, when the Passover lamb is sacrificed. Jesus sent Peter and John ahead and said, “Go and prepare the Passover meal, so we can eat it together.”
“Where do you want us to prepare it?” they asked him.
He replied, “As soon as you enter Jerusalem, a man carrying a pitcher of water will meet you. Follow him. At the house he enters, 11 say to the owner, ‘The Teacher asks: Where is the guest room where I can eat the Passover meal with my disciples?’ He will take you upstairs to a large room that is already set up. That is where you should prepare our meal.” They went off to the city and found everything just as Jesus had said, and they prepared the Passover meal there. -Luke 22: 7-13, NLT
When the time came, Jesus and the apostles sat down together at the table. Jesus said, “I have been very eager to eat this Passover meal with you before my suffering begins. 16 For I tell you now that I won’t eat this meal again until its meaning is fulfilled in the Kingdom of God.”
Then he took a cup of wine and gave thanks to God for it. Then he said, “Take this and share it among yourselves. 18 For I will not drink wine again until the Kingdom of God has come.”
He took some bread and gave thanks to God for it. Then he broke it in pieces and gave it to the disciples, saying, “This is my body, which is given for you. Do this in remembrance of me.”
After supper he took another cup of wine and said, “This cup is the new covenant between God and his people—an agreement confirmed with my blood, which is poured out as a sacrifice for you. -Luke 22:14-20, NLT
The comparison of the Passover in the Old Testament to Christ's Last Supper came from a document I purchased from Amazon called Christ in the Passover. I had a lot of people asking about it, so you can purchase it here.