loose his shoe: Pulling off the shoe seems to express his being degraded to the situation of slaves, who generally went barefoot; and spitting in or rather before (biphney:) his face, was a mark of the utmost ignominy. Ruth 4:7-8; Isaiah 20:2; Mark 1:7; John 1:27
So shall: Genesis 38:8-10; Ruth 4:10-11; 1 Samuel 2:30