Luke 22:7 Then came the day of unleavened bread, when the passover must be killed.
Mark 14:12 And the first day of unleavened bread, when they killed the passover, his disciples said unto him, Where wilt thou that we go and prepare that thou mayest eat the passover?
Luke 22:8 And he sent Peter and John, saying, Go and prepare us the passover, that we may eat.
Luke 22:9 And they said unto him, Where wilt thou that we prepare?
Luke 22:10 And he said unto them, Behold, when ye are entered into the city, there shall a man meet you, bearing a pitcher of water; follow him into the house where he entereth in.
Mark 14:13 And he sendeth forth two of his disciples, and saith unto them, Go ye into the city, and there shall meet you a man bearing a pitcher of water: follow him.
It was the women who carried water pitchers to and from the well. Men carried liquids in skins. So this would be an unusual sight.
Luke 22:11 And ye shall say unto the goodman of the house, The Master saith unto thee, Where is the guestchamber, where I shall eat the passover with my disciples?
Mark 14:14 And wheresoever he shall go in, say ye to the goodman of the house, The Master saith, Where is the guestchamber, where I shall eat the passover with my disciples?
Luke received much of the gospel information from interviews. Matthew, Mark and John were followers with Jesus all the time. The gospels are accurate accounts of the happenings. That which is recorded for us is inspired by God. Every word is there for a reason. Jesus heard from God and knew future things. We are to listen to the Holy Spirit within, who guides us into all truth and shows us things to come.
John 16:13 Howbeit when he, the Spirit of truth, is come, he will guide you into all truth: for he shall not speak of himself; but whatsoever he shall hear, that shall he speak: and he will show you things to come.
Luke 22:12 And he shall show you a large upper room furnished: there make ready.
Luke 22:13 And they went, and found as he had said unto them: and they made ready the passover.
No mention of a lamb in the Passover meal. Jesus represents the Passover lamb. Remember the story of a lamb slain and the blood applied to the door posts of each homeof the Jews? The blood protected the firstborn from the death angel that came after the firstborn in Egypt.
Exo 12:12 For I will pass through the land of Egypt this night, and will smite all the firstborn in the land of Egypt, both man and beast; and against all the gods of Egypt I will execute judgment: I am the LORD.
Exo 12:13 And the blood shall be to you for a token upon the houses where ye are: and when I see the blood, I will pass over you, and the plague shall not be upon you to destroy you, when I smite the land of Egypt.
Exo 12:14 And this day shall be unto you for a memorial; and ye shall keep it a feast to the LORD throughout your generations; ye shall keep it a feast by an ordinance for ever.
Exo 12:15 Seven days shall ye eat unleavened bread; even the first day ye shall put away leaven out of your houses: for whosoever eateth leavened bread from the first day until the seventh day, that soul shall be cut off from Israel.
Jesus would be killed and removed from the cross before the final Passover dinner was celebrated.
John 19:14 And it was the preparation of the passover, and about the sixth hour: and he saith unto the Jews, Behold your King!
John records that it was the day of the preparation of the Passover that Jesus was brought to the cross. The lambs were slain and cooking in the ovens in preparation of the traditional Passover supper.
John 19:15 But they cried out, Away with him, away with him, crucify him. Pilate saith unto them, Shall I crucify your King? The chief priests answered, We have no king but Caesar.
Seven days of unleavened bread and then the Passover meal, after sundown, Jesus having been slain and removed from the cross. They killed the Lamb of God and celebrated the Passover feast, a picture of the Lamb of God, slain from the foundation of the world. They kept the traditions, following the shadows and missed the light, Jesus, that God had sent to bring them everlasting life. Many would keep the Passover and die in their sins. Those who come to Jesus shall live forever.
1 Pet 1:18 Forasmuch as ye know that ye were not redeemed with corruptible things, as silver and gold, from your vain conversation received by tradition from your fathers;
1 Pet 1:19 But with the precious blood of Christ, as of a lamb without blemish and without spot:
1 Pet 1:20 Who verily was foreordained before the foundation of the world.