The LORD said to Moses and Aaron in the land of Egypt,
"This month shall stand at the head of your calendar; you shall reckon it the first month of the year.
Tell the whole community of Israel: On the tenth of this month every one of your families must procure for itself a lamb, one apiece for each household.
If a family is too small for a whole lamb, it shall join the nearest household in procuring one and shall share in the lamb in proportion to the number of persons who partake of it.
The lamb must be a year-old male and without blemish. You may take it from either the sheep or the goats.
You shall keep it until the fourteenth day of this month, and then, with the whole assembly of Israel present, it shall be slaughtered during the evening twilight.
They shall take some of its blood and apply it to the two doorposts and the lintel of every house in which they partake of the lamb.
That same night they shall eat its roasted flesh with unleavened bread and bitter herbs.
"This is how you are to eat it: with your loins girt, sandals on your feet and your staff in hand, you shall eat like those who are in flight. It is the Passover of the LORD.
For on this same night I will go through Egypt, striking down every first--born of the land, both man and beast, and executing judgment on all the gods of Egypt-I, the LORD!
But the blood will mark the houses where you are. Seeing the blood, I will pass over you; thus, when I strike the land of Egypt, no destructive blow will come upon you.
"This day shall be a memorial feast for you, which all your generations shall celebrate with pilgrimage to the LORD, as a perpetual institution.
How shall I make a return to the LORD
for all the good he has done for me?
The cup of salvation I will take up,
and I will call upon the name of the LORD.
Precious in the eyes of the LORD
is the death of his faithful ones.
I am your servant, the son of your handmaid;
you have loosed my bonds.
To you will I offer sacrifice of thanksgiving,
and I will call upon the name of the LORD.
My vows to the LORD I will pay
in the presence of all his people.
First Letter to the Corinthians 11:23-26.
Brothers and sisters: I received from the Lord what I also handed on to you, that the Lord Jesus, on the night he was handed over, took bread,
and, after he had given thanks, broke it and said, "This is my body that is for you. Do this in remembrance of me."
In the same way also the cup, after supper, saying, "This cup is the new covenant in my blood. Do this, as often as you drink it, in remembrance of me."
For as often as you eat this bread and drink the cup, you proclaim the death of the Lord until he comes.
Holy Gospel of Jesus Christ according to Saint John 13:1-15.
Before the feast of Passover, Jesus knew that his hour had come to pass from this world to the Father. He loved his own in the world and he loved them to the end.
The devil had already induced Judas, son of Simon the Iscariot, to hand him over. So, during supper,
fully aware that the Father had put everything into his power and that he had come from God and was returning to God,
he rose from supper and took off his outer garments. He took a towel and tied it around his waist.
Then he poured water into a basin and began to wash the disciples' feet and dry them with the towel around his waist.
He came to Simon Peter, who said to him, "Master, are you going to wash my feet?"
Jesus answered and said to him, "What I am doing, you do not understand now, but you will understand later."
Peter said to him, "You will never wash my feet." Jesus answered him, "Unless I wash you, you will have no inheritance with me."
Simon Peter said to him, "Master, then not only my feet, but my hands and head as well."
Jesus said to him, "Whoever has bathed has no need except to have his feet washed, for he is clean all over; so you are clean, but not all."
For he knew who would betray him; for this reason, he said, "Not all of you are clean."
So when he had washed their feet (and) put his garments back on and reclined at table again, he said to them, "Do you realize what I have done for you?
You call me 'teacher' and 'master,' and rightly so, for indeed I am.
If I, therefore, the master and teacher, have washed your feet, you ought to wash one another's feet.
I have given you a model to follow, so that as I have done for you, you should also do.
"Then he took the cup... , saying : ‘This is my blood ... which will be shed on behalf of many for the remission of sins'" (Mt 26,27-28)
O Immeasurable Love! By revealing your secrets to me you have given me a bitter-sweet medicine so that I might rise up once and for all from the sickness of foolish indifference and run to you with concern and eager longing. You would have me know myself and your goodness, and the sins committed against you by every class of people and especially by your ministers, so that I might draw tears from the knowledge of your infinite goodness and let them flow as a river over my wretched self and over these wretched living dead.... Now, I beg you, be merciful to the world and to holy Church.
Alas for my wretched sorrowful soul, the cause of all evil! Do not delay any longer in granting your mercy to the world; bow down and fulfill the longing of your servants... They desire the blood in which you washed away iniquity and drained the sore of Adam’s sin. His blood is ours because you have made of it a bath for us, and you neither can nor will refuse it to those who ask for it in truth. Give, then, the fruit of this blood to these creatures of yours… They are asking you through this blood to be merciful to the world.