So Jesus sends of a couple disciples to request the right ride with the words... "The Master has need of it."
As this is beginning of Holy week it is sobering to note the horrifically sad irony of the crowds this first Palm Sunday shouting HOSANNA, then five short days later crowds would be crying CRUCIFY HIM! Within 5 days we witness the celebratory high of the first Palm Sunday all the way to the great low of the crucifixion which all was part of God's plan.
These were the religious leaders of the day who were mostly indignant of these crowds honoring Jesus while a few others were mostly jealous of Jesus sweet ride.
Remember if you don't shout Hosanna, the Rocks may just do it for you.