Praise to Hatred, Celebration to Resentment.
Jesus was perfect, and for a moment, the people recognised that. They knew He was the one who could save them, and He was worthy of praise because He is the Son of God. However, the waving palm leaves turned to thorns and flogging, the praise turned to shouts of anger and hatred and the cries of 'Hosanna!' changed to 'Crucify him!'.