Dressed In a Royal Robe
One of the themes of Luke’s account of the Passion is that he portrays the Crucifixion as the royal enthronement of Jesus. To be clear, it is an unexpected enthronement: he is being put to death, after all. But, as we read through the Passion account, pay attention to all the ways Jesus is being prepared for a “coronation.”
For example,
Then Herod and his soldiers ridiculed and mocked him. Dressing him in an elegant robe, they sent him back to Pilate.
Luke 23:11
Jesus is a prisoner about to be crucified, but Luke wants us to pick up on the irony: Herod thinks he is mocking him, but he is really preparing him for his enthronement.