Mat 5:17 Think not that I am come to destroy the law, or the prophets: I am not come to destroy, but to fulfil.
Mat 5:18 For verily I say unto you, Till heaven and earth pass, one jot or one tittle shall in no wise pass from the law, till all be fulfilled.
Luk 22:19 And he took bread, and gave thanks, and brake it, and gave unto them, saying, This is my body which is given for you: this do in remembrance of me.
Luk 22:20 Likewise also the cup after supper, saying, This cup is the new testament in my blood, which is shed for you.
The Last Supper
At the last supper when Jesus broke bread and blessed it and passed the cup the disciples did not thing this strange, in fact they were more concerned on who it would be that would betray Jesus.
We must remember that Jesus was never a Christian, He was Jewish.
In the run up to Passover the Jews would prepare themselves spiritually by making the required offerings. The people that came from a distance away would sell the animals for offering at home, and then replace them when they arrived at Jerusalem. When Jesus went into the temple and cast out the dealers and the money changers it was not because they were helping to replace the sacrifices but because it was happening in the temple and the priests were involved and they were making a profit from it. The priests were not supposed to be doing this as God would supply their needs
Mat 21:12 And Jesus went into the temple of God, and cast out all them that sold and bought in the temple, and overthrew the tables of the moneychangers, and the seats of them that sold doves,
Mat 21:13 And said unto them, It is written, My house shall be called the house of prayer; but ye have made it a den of thieves.
There was extra activity at this time because it was Passover week.
Jesus and His disciples would have been making the required sacrifices during that week and at the last supper they would have been taking part in the peace offering, the only offering they got back to eat themselves and it was also to be shared with others. The blessing that Jesus gave was for the peace offering. The disciples did not realise at that stage that Jesus would soon become the peace offering and share himself with all those that accepted Him.
Fulfilling the laws.
It was during this week that Jesus fulfilled the sacrificial laws.
The Passover lamb was to be selected on the first day of the week and then inspected for four days to see that it had no spot or blemish.
Jesus rode into Jerusalem on the first day of the week and the crowds selected Him singing Hosanna.
He spent the days speaking and teaching in the temple:
Luk 19:47 And he taught daily in the temple. But the chief priests and the scribes and the chief of the people sought to destroy him,
Luk 19:48 And could not find what they might do: for all the people were very attentive to hear him.
Eventually Jesus was brought before Pilot and he said “I find no fault in Him.” Jesus was acceptable for the sacrifice.
When they placed the crown of thorns on His head they pressed it down passing their sin onto Him and the thorns representing the sin of the world.
They whipped His back representing the fact that the skin of the burnt offering was to be flayed.
They anointed the four corners of the cross with His blood from the blood of the nails in His hands and feet and the blood coming from the cuts on His head were the crown of thorns was.
They eventually pierced His side and the remainder of His blood was poured out at the foot of the cross as it would have been poured out at the foot of the altar.
Jesus had fulfilled all the requirements of the five sacrifices when He died on the cross; the sacrificial law was not taken away but was fulfilled by Jesus as the final sacrifice. The blood of bulls and goats was no longer needed the blood of Jesus was more than enough to meet all the needs of mankind before God.