In the accounts of the four canonical Gospels, Jesus' triumphal entry into Jerusalem takes place about a week before his Resurrection.
According to the Gospels, Jesus Christ rode a donkey into Jerusalem, and the celebrating people there laid down their cloaks and small branches of trees in front of him, and sang part of Psalm 118: 25–26 – ... Blessed is He who comes in the name of the Lord. We bless you from the house of the Lord...
The symbolism of the donkey may refer to the Eastern tradition that it is an animal of peace, versus the horse, which is the animal of war. A king would have ridden a horse when he was bent on war and ridden a donkey to symbolize his arrival in peace. Jesus' entry to Jerusalem would have thus symbolized his entry as the Prince of Peace, not as a war-waging king.