Please read both of the first two hyperlinked verses below before going on.
This was predicted in the Old Testament Isaiah 62:11 . it talks about Palm Sunday, I referenced The Message version of the Bible so it is easier to read. Zechariah 9:9 Talks about Jesus purpose and why he came to Jerusalem. The colt was also not to have been ridden Mark 11:2 I also find it amazing that without telling anyone that they would need a donkey and colt, Jesus had already put the thought into someone’s head.Mat 21:6 The disciples went and did just as Jesus had instructed them, Mat 21:7 and brought the donkey and the colt, and laid their coats on them; and He sat on the coats. Mat 21:8 Most of the crowd spread their coats in the road, and others were cutting branches from the trees and spreading them in the road.
That is a splendid way to ruin a good coat so why does anyone do it. This was the way the people of that era welcomed a king. It was normal for them to honor a king by laying down palm leaves a coat or something that honored the person going by. Think of it as the red carpet that celebrities walk on when they are giving themselves awards.[The branches, probably from olive or fig trees, were used to welcome a national liberator and symbolized victory. This verse is one of the few places where the Gospels record that Jesus’ glory was recognized on earth.] from Life Application New Testament Commentary.
Mat 21:9 The crowds going ahead of Him, and those who followed, were shouting, "Hosanna to the Son of David; BLESSED IS HE WHO COMES IN THE NAME OF THE LORD; Hosanna in the highest!"
They were chanting the words for Psalms 118: 25-26 This was from King David so again the were honoring Jesus as a king.Mat 21:10 When He had entered Jerusalem, all the city was stirred, saying, "Who is this?" Mat 21:11 And the crowds were saying, "This is the prophet Jesus, from Nazareth in Galilee.
They were excited because they believe this was the prophet from Deuteronomy 18: 15-18 I did not hyperlink this because I want to insure that it was read.Deu 18:15 "The LORD your God will raise up for you a prophet like me from among you, from your countrymen, you shall listen to him. Deu 18:16 "This is according to all that you asked of the LORD your God in Horeb on the day of the assembly, saying, 'Let me not hear again the voice of the LORD my God, let me not see this great fire anymore, or I will die.' Deu 18:17 "The LORD said to me, 'They have spoken well. Deu 18:18 'I will raise up a prophet from among their countrymen like you, and I will put My words in his mouth, and he shall speak to them all that I command him.