Question: During the Last Supper who did Jesus predict would betray him?
About the article "Last Supper", section "Prediction of Judas' betrayal".

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In , , and during the meal, Jesus predicted that one of his Apostles would betray him.
Jesus is described as reiterating, despite each Apostle's assertion that he would not betray Jesus, that the betrayer would be one of those who were present, and saying that there would be "woe to the man who betrays the Son of man!
It would be better for him if he had not been born."
In and , Judas is specifically identified as the traitor.
In the Gospel of John, when asked about the traitor, Jesus states: “It is the one to whom I will give this piece of bread when I have dipped it in the dish.” Then, dipping the piece of bread, he gave it to Judas, the son of Simon Iscariot.
As soon as Judas took the bread, Satan entered into him."
The Last Supper is the final meal that Jesus shares with his twelve apostles in Jerusalem before his crucifixion.
The Last Supper is mentioned in all four canonical gospels, and Paul's First Epistle to the Corinthians () also refers to it.
During the meal, Jesus predicts that one of his apostles will betray him.
Despite each Apostle's assertion that he would not betray him, Jesus reiterates that the betrayer would be one of those present.
and specifically identify Judas as the traitor.
In the Synoptics, Jesus takes bread, breaks it and gives it to the disciples, saying, "This is my body, which is given for you".
He then has them all drink from a cup, saying, "This cup that is poured out for you is the new covenant in my blood" ().
The Christian sacrament or ordinance of the Eucharist is based on these events.
Although the Gospel of John does not include a description of the bread-and-wine ritual during the Last Supper, most scholars agree that (the Bread of Life Discourse) has a eucharistic character and resonates with the institution narratives in the Synoptic Gospels and in the Pauline writings on the Last Supper.
In all four gospels, Jesus predicts that Peter will deny knowledge of him three times before the rooster crows the next morning.
In Luke and John, the prediction is made during the Supper (, ).
In Matthew and Mark, the prediction is made after the Supper, and Jesus also predicts that all his disciples will desert him (, ).
The Gospel of John provides the only account of Jesus washing his disciples' feet before the meal.
John also includes a long sermon by Jesus, preparing his disciples (now without Judas) for his departure.
of the Gospel of John are known as the Farewell Discourse and are a significant source of Christological content. 
The Last Supper is to be the subject of an animation by British film-maker Peter Greenaway, who plans to project interpretative images onto its surface to enliven the scene in which the apostles all question Jesus' statement that one of them will betray him. 
"The Last Supper" measures and covers an end wall of the dining hall at the monastery of Santa Maria delle Grazie in Milan, Italy.
The theme was a traditional one for refectories, although the room was not a refectory at the time that Leonardo painted it.
The main church building had only recently been completed (in 1498), but was remodeled by Bramante, hired by Ludovico Sforza to build a Sforza family mausoleum.
The painting was commissioned by Sforza to be the centerpiece of the mausoleum.
The lunettes above the main painting, formed by the triple arched ceiling of the refectory, are painted with Sforza coats-of-arms.
The opposite wall of the refectory is covered by the Crucifixion fresco by Giovanni Donato da Montorfano, to which Leonardo added figures of the Sforza family in tempera.
(These figures have deteriorated in much the same way as has "The Last Supper".)
Leonardo began work on "The Last Supper" in 1495 and completed it in 1498—he did not work on the painting continuously.
The beginning date is not certain, as the archives of the convent for the period have been destroyed and a document dated 1497 indicates that the painting was nearly completed at that date.
One story goes that a prior from the monastery complained to Leonardo about the delay, enraging him.
He wrote to the head of the monastery, explaining he had been struggling to find the perfect villainous face for Judas, and that if he could not find a face corresponding with what he had in mind, he would use the features of the prior who complained.
The Last Supper specifically portrays the reaction given by each apostle when Jesus said one of them would betray him.
All twelve apostles have different reactions to the news, with various degrees of anger and shock.
The apostles are identified from a manuscript ("The Notebooks of Leonardo da Vinci" p. 232) with their names found in the 19th century.
(Before this, only Judas, Peter, John and Jesus were positively identified.)
From left to right, according to the apostles' heads:  Bartholomew, James, son of Alphaeus and Andrew form a group of three, all are surprised.
Judas Iscariot, Peter and John form another group of three.
Judas is wearing green and blue and is in shadow, looking rather withdrawn and taken aback by the sudden revelation of his plan.
He is clutching a small bag, perhaps signifying the silver given to him as payment to betray Jesus, or perhaps a reference to his role within the 12 disciples as treasurer.
He is also tipping over the salt cellar.
This may be related to the near-Eastern expression to "betray the salt" meaning to betray one's Master.
He is the only person to have his elbow on the table and his head is also horizontally the lowest of anyone in the painting.
Peter looks angry and is holding a knife pointed away from Christ, perhaps foreshadowing his violent reaction in Gethsemane during Jesus' arrest.
The youngest apostle, John, appears to swoon.
Jesus.
Apostle Thomas, James the Greater and Philip are the next group of three.
Thomas is clearly upset; the raised index finger foreshadows his Incredulity of the Resurrection.
James the Greater looks stunned, with his arms in the air.
Meanwhile, Philip appears to be requesting some explanation.
Matthew, Jude Thaddeus and Simon the Zealot are the final group of three.
Both Jude Thaddeus and Matthew are turned toward Simon, perhaps to find out if he has any answer to their initial questions.
In common with other depictions of The Last Supper from this period, Leonardo seats the diners on one side of the table, so that none of them has his back to the viewer.
Most previous depictions excluded Judas by placing him alone on the opposite side of the table from the other eleven disciples and Jesus or placing halos around all the disciples except Judas.
Leonardo instead has Judas lean back into shadow.
Jesus is predicting that his betrayer will take the bread at the same time he does to Saints Thomas and James to his left, who react in horror as Jesus points with his left hand to a piece of bread before them.
Distracted by the conversation between John and Peter, Judas reaches for a different piece of bread not noticing Jesus too stretching out with his right hand towards it (Matthew 26: 23).
The angles and lighting draw attention to Jesus, whose head is located at the vanishing point for all perspective lines.
The painting contains several references to the number 3, which represents the Christian belief in the Holy Trinity.
The Apostles are seated in groupings of three; there are three windows behind Jesus; and the shape of Jesus' figure resembles a triangle.
There may have been other references that have since been lost as the painting deteriorated. 
At what Jesus knows will be the Last Supper, he pours wine and passes bread for his apostles.
He's very aware of the ordeal he faces.
He is stung when the others don't pay much attention to him; "For all you care this wine could be my blood / For all you care this bread could be my body," he remarks ("The Last Supper"), alluding to (and anticipating) the Christian doctrine of the Eucharist.
He asks them to remember him when they eat and drink; he predicts that Peter will deny him three times "in just a few hours" and that one of them will betray him.
Judas, believing that Jesus already knows ("cut the dramatics, you know very well who"), admits he is the one and angrily accuses Jesus of acting recklessly and egotistically.
Claiming he doesn't understand Jesus' decisions, he leaves to bring the Roman soldiers.
The remaining apostles fall asleep, and Jesus retreats to the Garden of Gethsemane to pray.
He admits to God his doubts, fears and anger, that he is tired and has done all he can.
He asks powerfully if any of it has meaning and implores God not let him suffer the horrible death that portends for him.
He feels disillusioned with his quest as the Messiah, doesn't understand what it has achieved and wishes to give up.
Receiving no answer, Jesus realizes that he cannot defy God's will, and surrenders to God.
His prayer ends with a request that God take him immediately, "before I change my mind" ("Gethsemane (I Only Want to Say)").
Judas arrives with Roman soldiers and identifies Jesus by kissing him on the cheek.
Jesus is arrested, and his apostles attempt to fight the soldiers.
Jesus tells them to let the soldiers take him to Caiaphas.
On the way, a mob (acting like—and sometimes represented as—modern-day news reporters) asks Jesus what he plans to do, but Jesus declines to comment.
When Jesus is brought to trial before the Sanhedrin, Caiaphas asks if he is the son of God.
Jesus responds: "That's what you say, you say that I am."
This answer is affirmative according to Jewish custom, and that provides enough justification for the high priests to send Jesus to Pontius Pilate ("The Arrest").
Meanwhile, Jesus' apostle Peter is confronted by an old man, a soldier and a maid, and Peter denies to each that he knows Jesus.
Mary asks Peter why he denied Jesus, and Peter responds that he had to do it in order to save himself.
Mary wonders how Jesus knew that Peter would deny him three times ("Peter's Denial").
Pilate asks Jesus if he is the son of God.
Jesus gives the same answer that he gave Caiaphas: "that's what "you" say."
Since Jesus is from Galilee, Pilate says that he is not under his jurisdiction and sends him to King Herod ("Pilate and Christ").
As Jesus is dragged away, the chorus asks where Jesus' power has gone ("Hosanna Reprise").
In a mocking ragtime number, the decadent and flamboyant King Herod asks Jesus to prove his divinity by performing miracles, offering to free him if he complies; but Jesus ignores him.
Herod decides that Jesus is just another phony messiah and angrily sends him back to Pilate ("Herod's Song (Try It and See)").
The apostles and Mary Magdalene remember when they first began following Jesus, and wish that they could return to a time of peace ("Could We Start Again, Please?")
Feeling extreme guilt for Jesus' harsh treatment by the authorities, and panicking that he will be seen as responsible, Judas expresses regret to the priests, fearing he will forever be remembered as a traitor.
Caiaphas and Annas say that what he has done will save everyone and that he should not feel remorse for his actions before throwing him out of their temple.
Left alone, recognition dawns that memories of this could haunt the rest of his life, that God chose him to be the one to betray Jesus, and that he has been used as a pawn for the "foul bloody crime".
He suffers a mental breakdown during the epiphany, cursing God for his manipulative ways, and in a final attempt to detach himself from his destiny, he commits suicide by hanging himself from a tree ("Judas' Death").
At Jesus' trial, Pilate asks the crowd if they would crucify Jesus, their king, and they declare: "We have no king but Caesar!"
Pilate remembers the dream he had about the crowd and the unjust execution of Jesus ("Pilate's Dream" instrumental).
Pilate tells the crowd that, while Jesus should be imprisoned, he does not deserve to die.
Pilate demands that the crowd give him a reason to condemn Jesus, and the crowd breaks into a pep rally-style cheer about how Jesus is a blasphemer and has defied Rome.
After revealing Jesus as nothing more than a pathetic human being ('Behold the man!
"), Pilate calls the crowd hypocrites, as he knows they hate Roman rule.
He attempts to satisfy their bloodlust by having Jesus whipped, counting thirty-nine bloody strokes.
Pilate, clearly disturbed by the whole ordeal, pleads with Jesus to defend himself; but Jesus says weakly that everything has been determined (by God), and Pilate cannot change it.
The crowd still screams for Jesus to be crucified, and Pilate recalls his duty to keep the peace.
He reluctantly agrees to crucify Jesus to keep the crowd from getting violent ("Trial Before Pilate (Including the Thirty-Nine Lashes)").
Pilate then washes his hands of Jesus' death: "I wash my hands of your demolition/Die if you want to, you innocent puppet".
As Jesus prepares to be crucified, he is mocked by a vision of Judas.
Judas questions why Jesus chose to arrive in the manner and time that he did, and if what happened to him was really part of a divine plan, but Jesus does not say ("Superstar").
As Jesus is nailed to the cross, some productions opt to show Judas suffering a stigmata-like effect, indicating that he is paying for his sin.
After reciting his final words and commending his spirit to God, Jesus slowly dies on the cross, his fate coming full circle ("The Crucifixion").
The final instrumental number shows the Apostles, Mary and Judas mourning the death of their fallen savior, reflecting on the impact he's had on their lives ("John Nineteen: Forty-One").