the following illustration, of events on Nisan 12, are from: (chapter 112 of The Greatest Man Who Ever Lived)
(Judas Iscariot conspires to betray Jesus to the religious leaders)
Memorial Bible Reading:
(Events on Nisan 12)
Matthew 26:1-5, 14-16;
Matthew 26:1-5, 14-16
Now when Jesus had finished all these sayings, he said to his disciples: “YOU know that two days from now the passover occurs, and the Son of man is to be delivered up to be impaled.” Then the chief priests and the older men of the people gathered together in the courtyard of the high priest who was called Ca′ia·phas, and took counsel together to seize Jesus by crafty device and kill him. However, they kept saying: “Not at the festival, in order that no uproar may arise among the people.” ...
Then one of the twelve, the one called Judas Is·car′i·ot, went to the chief priests and said: “What will YOU give me to betray him to YOU?” They stipulated to him thirty silver pieces. So from then on he kept seeking a good opportunity to betray him.
Now the festival of the unfermented cakes, the so-called Passover, was getting near. Also, the chief priests and the scribes were seeking the effective way for them to get rid of him, for they were in fear of the people. But Satan entered into Judas, the one called Is·car′i·ot, who was numbered among the twelve; and he went off and talked with the chief priests and [temple] captains about the effective way to betray him to them. Well, they rejoiced and agreed to give him silver money. So he consented, and he began to seek a good opportunity to betray him to them without a crowd around.
from chapter 112 of the 'Greatest Man' book:
Jesus apparently spends the following day, Wednesday, Nisan 12, in quiet retirement with his apostles. On the day before, he had rebuked the religious leaders publicly, and he realizes that they are seeking to kill him. So on Wednesday he does not openly show himself, since he does not want anything to interfere with his celebrating the Passover with his apostles the following evening.
In the meantime, the chief priests and the older men of the people have gathered in the courtyard of the high priest, Caiaphas. Smarting from Jesus’ attack the previous day, they are making plans to seize him by crafty device and have him put to death. Yet they keep saying: “Not at the festival, in order that no uproar may arise among the people.” They are in fear of the people, whose favor Jesus enjoys.
While the religious leaders are wickedly conspiring to kill Jesus, they receive a visitor. To their surprise, it is one of Jesus’ own apostles, Judas Iscariot, the one into whom Satan has implanted the base idea of betraying his Master! How pleased they are when Judas inquires: “What will you give me to betray him to you?” They gladly agree to pay him 30 silver pieces, the price of a slave according to the Mosaic Law covenant. From then on, Judas seeks a good opportunity to betray Jesus to them without a crowd around.