Jesus rode into Jerusalem on what we now call Palm Sunday; palm branches, which symbolize triumph or victory, were strewn in Jesus’ path, as He rode into the city. He rode into town on a humble donkey, fulfilling the prophecy in Zechariah 9:9: “Rejoice greatly, Daughter Zion! Shout, Daughter Jerusalem! See, your kings comes to you, righteous and victorious, low and riding on a donkey, on a colt, the foal of a donkey.” The people welcomed Him, echoing the words of Psalm 118:25-26: “Lord, save us! Lord, grant us success!” more popularly recognizes as “Hosanna! Hosanna!”
The word hosanna originated from the word save. The meaning of the word eventually shifted to express gratitude for salvation, and is used in the New Testament initially in Matthew 21:9: “The crowds that went ahead of him and those that followed shouted, ‘Hosanna to the Son of David!’ ‘Blessed is he who comes the name of the Lord!’ ‘Hosanna in the highest heaven!’” This is a pivotal moment in the history of humanity, as the long-awaited new covenant God promised to His people would produce new salvation through Jesus’ death on the cross.
When Jesus started down the Mount of Olives, his large crowd of disciples were happy and praised God because of all the miracles they had seen. They shouted, Blessed is the king who comes in the name of the Lord! Peace in heaven and glory to God.” Some Pharisees in the crowd said to Jesus, “Teacher, make your disciples stop shouting!”But Jesus answered, “If they keep quiet, these stones will start shouting Luke 19-37 Online Sources