Remigius of Auxerre
Catena Aurea · Matthäusevangelium 27
Then the soldiers of the governor took Jesus into the common hall, and gathered unto him the whole band of soldiers. And they stripped him, and put on him a scarlet robe. And when they had platted a crown of thorns, they put it upon his head, and a reed in his right hand: and they bowed the knee before him, and mocked him, saying, Hail, king of the Jews! And they spit upon him, and took the reed, and smote him on the head.
Or otherwise, By the scarlet robe is denoted the Lord’s flesh, which is spoken of as red by reason of shedding of His blood; by the crown of thorns His taking upon Him our sins, because He appeared in the likeness of sinful flesh. (Rom. 8:3.)