Mt 2:9-11,Jn 19:30
When Jesus was born, the wise men brought gifts of gold, frankincense, and myrrh. These gifts symbolize the work of Christ. Each gift symbolizes a king, a priest, and death. (Mt 2:9-11)
Mt 2:9 When they had heard the king, they departed; and, lo, the star, which they saw in the east, went before them, till it came and stood over where the young child was. 10 When they saw the star, they rejoiced with exceeding great joy. 11 And when they were come into the house, they saw the young child with Mary his mother, and fell down, and worshipped him: and when they had opened their treasures, they presented unto him gifts; gold, and frankincense and myrrh.
Mary prepared for Jesus' death on the cross, that is, the completion of Christ's work. (Jn 12:3,7)
Jn 12:3 Then took Mary a pound of ointment of spikenard, very costly, and anointed the feet of Jesus, and wiped his feet with her hair: and the house was filled with the odour of the ointment. 7 Then said Jesus, Let her alone: against the day of my burying hath she kept this.
By the death of Jesus, the work of Christ (the work of king, priest, and prophet) was completed. (Jn 19:30)
Jn 19:30 When Jesus therefore had received the vinegar, he said, It is finished: and he bowed his head, and gave up the ghost.