1) Six days before Passover, Jesus came to Bethany where Lazarus was. Mary anointed Jesus' feet with expensive spikenard oil and wiped his feet with her hair, filling the house with fragrance.
2) Judas questioned why the oil was not sold and money given to the poor, though he did not care for the poor. Jesus said to leave Mary alone, as she was anointing him for burial.
3) Though there will always be poor, Jesus would not always be with them physically. Mary showed great faith by anointing Jesus prior to his death and burial.