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 fulfil 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 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!”

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.”

In that day the Branch of the LORD will be beautiful and glorious, and the fruit of the land will be the pride and glory of the survivors in Israel. Those who are left in Zion, who remain in Jerusalem, will be called holy, all who are recorded among the living in Jerusalem. The Lord will wash away the filth of the women of Zion; he will cleanse the bloodstains from Jerusalem by a spirit of judgement and a spirit of fire.

Then the LORD will create over all of Mount Zion and over those who assemble there a cloud of smoke by day and a glow of flaming fire by night; over all the glory will be a canopy. It will be a shelter and shade from the heat of the day, and a refuge and hiding place from the storm and rain.