Found in Matthew 26:1-16, Mark 14:1-9 and John 12:1-11 (Luke 22:1-4 tells of Judas but not Mary)
Jesus (to his disciples): You know that the feast of the Passover is in two days and the Son of man is betrayed to be crucified.
Then the chief priests, and the scribes, and the elders of the people assembled together at the palace of Caiaphas the high priest. They consulted that they might take Jesus by subtilty and kill him.
The chief priests, scribes, and elders: Not on the feast day, lest there be an uproar among the people.
Then Jesus came to Bethany, where Lazarus was who had been dead, whom he raised from the dead. There they made him a supper.
The gospels of Matthew and Mark both tell us that the supper was “in the house of Simon the leper.”
Martha served, but Lazarus was one of them that sat at the table with Jesus. Then Mary took a pound of ointment of spikenard, very costly.
Mark tells us the ointment was in “an alabaster box, and she brake the box.” (14:13)
Matthew reveals that Mary poured the ointment “on his head as he sat at meat.” (26:7)
And she anointed the feet of Jesus, and wiped his feet with her hair: and the house was filled with the odor of the ointment.
Mark tells us “there were some that had indignation within themselves.” (14:4)
Judas Iscariot (Simon’s son, who would betray Jesus): Why wasn’t this ointment sold for three hundred pence and given to the poor?
He said this not because he cared for the poor; but because he was a thief, and had the money bag, and carried what was put in it.
And they murmured against her.
Jesus: Let her alone. Why do you trouble her? She has done a good work for me. For you will always have the poor with you, and whenever you will you may do good for them, but me you will not always have. She has done what she could. She has come beforehand to anoint my body for burying. Truly, wherever this gospel shall be preached throughout the whole world, this also that she has done shall be spoken of for a memorial of her.
Many of the Jews therefore knew that he was there: and they came not for Jesus’ sake only, but that they might see Lazarus also, whom Jesus had raised from the dead. But the chief priests consulted that they might put Lazarus also to death; Because that by reason of him many of the Jews went away, and believed on Jesus.
Luke tells us that Satan entered into Judas Iscariot. (22:3)
Matthew adds, “And Judas went to the chief priests.” (26:14)
Mark tells us Judas went specifically “to betray Jesus to them.” (14:11)
Luke says Judas “communed with the chief priests and captains” (22:4)
Judas: What will you give me, and I will deliver him to you?
Mark says, “And when they heard it, they were glad.” (14:11)
They covenanted with him for thirty pieces of silver. And from that time Judas sought an opportunity to betray Jesus.