Palm Sunday, also called Passion Sunday, is the sixth Sunday which marks the beginning of Holy Week. During Holy Week Christians remember the passion of Christ beginning with the triumphant entrance of Jesus into Jerusalem. On this day, the Church enters upon the mystery of its crucified, buried, and risen Lord, who by His entrance into Jerusalem, gave a glimpse of His own majesty.This entry into Jerusalem is seen as the prophetic fulfillment of Zacharias 9:9-10 :
Rejoice heartily, O daughter of Zion, shout for joy, O daughter of Jerusalem! See, your king shall come to you; a just savior is he, Meek, and riding on an ass, on a colt, the foal of an ass. He shall banish the chariot from Ephraim, and the horse from Jerusalem; The warrior's bow shall be banished, and he shall proclaim peace to the nations. His dominion shall be from sea to sea, and from the River to the ends of the earth.
Christians carry branches as a sign of the royal triumph that Christ won by His acceptance of the cross. In early times, Christians celebrated with processions through Jerusalem the Sunday before Easter. Today, Christians observe this day by handing out palm branches and processing into the church. As Jesus came into Jerusalem the people praised Him by saying "Hosanna" [A word of joyful acclamation in Hebrew, signifying save now] and proclaiming Him their new king. As was the tradition for royalty and heroes, during this time, palm branches and clothing were laid on the road for Him to walk on. Five days later He was crucified.