Matthew 21:1-5 (NIV)
As they approached Jerusalem and came to Bethphage on the Mount of Olives, Jesus sent two disciples, saying to them, “Go to the village ahead of you, and at once you will find a donkey tied there, with her colt by her. Untie them and bring them to me. If anyone says anything to you, tell him that the Lord needs them, and he will send them right away.” This took place to fulfill what was spoken through the prophet: “Say to the Daughter of Zion, ‘See, your king comes to you, gentle and riding on a donkey, on a colt, the foal of a donkey.’”

The Triumphal Entry Was Prophetic

Zechariah 9:9 (NIV)
Rejoice greatly, O Daughter of Zion! Shout, Daughter of Jerusalem! See, your king comes to you, righteous and having salvation, gentle and riding on a donkey, on a colt, the foal of a donkey.

Matthew 21:6-9 (NIV)
The disciples went and did as Jesus had instructed them. They brought the donkey and the colt, placed their cloaks on them, and Jesus sat on them. A very large crowd spread their cloaks on the road, while others cut branches from the trees and spread them on the road. The crowds that went ahead of him and those that followed shouted, “Hosanna to the Son of David!” “Blessed is he who comes in the name of the Lord!” “Hosanna in the highest!”

Psalm 118:25-26 (NIV)
O Lord, save us; O Lord, grant us success. Blessed is he who comes in the name of the Lord. From the house of the Lord we bless you.

Matthew 21:10-11 (NIV)
When Jesus entered Jerusalem, the whole city was stirred and asked, “Who is this?” The crowds answered, “This is Jesus, the prophet from Nazareth in Galilee.”

The Triumphal Entry Was Problematic

John 20:19-22 (NIV)
On the evening of the first day of the week, when the disciples were together, with the doors locked for fear of the Jews, Jesus came and stood among them and said, “Peace be with you!” After he said this, he showed them his hands and side. The disciples were overjoyed when they saw the Lord. Again Jesus said, “Peace be with you! As the Father has sent me, so I am sending you.” And with that he breathed on them and said, “Receive the Holy Spirit.”

Revelation 19:11-16 (NIV)
I saw heaven standing open and there before me was a white horse, whose rider is called Faithful and True. With justice he judges and makes war. His eyes are like blazing fire, and on his head are many crowns. He has a name written on him that no one knows but he himself. He is dressed in a robe dipped in blood, and his name is the Word of God. The armies of heaven were following him, riding on white horses and dressed in fine linen, white and clean. Out of his mouth comes a sharp sword with which to strike down the nations. “He will rule them with an iron scepter.” He treads the winepress of the fury of the wrath of God Almighty. On his robe and on his thigh he has this name written: “King of Kings and Lord of Lords”.