When they approached Jerusalem and came to Bethphage on the Mount of Olives, Jesus gave two disciples a task.
References for Matthew 21:1
He said to them, "Go into the village over there. As soon as you enter, you will find a donkey tied up and a colt with it. Untie them and bring them to me.
If anybody says anything to you, say that the Lord needs it." He sent them off right away.
Now this happened to fulfill what the prophet said,
Say to Daughter Zion, "Look, your king is coming to you, humble and riding on a donkey, and on a colt the donkey's offspring."
References for Matthew 21:5
The disciples went and did just as Jesus had ordered them.
They brought the donkey and the colt and laid their clothes on them. Then he sat on them.
Now a large crowd spread their clothes on the road. Others cut palm branches off the trees and spread them on the road.
The crowds in front of him and behind him shouted, "Hosanna to the Son of David! Blessings on the one who comes in the name of the Lord!Hosanna in the highest!"
References for Matthew 21:9
And when Jesus entered Jerusalem, the whole city was stirred up. "Who is this?" they asked.
The crowds answered, "It's the prophet Jesus from Nazareth in Galilee."