Isn't that symbolism for washing the hands, which was what Pilate (Roman) did when He ordered the crucifixion of Jesus?
Interesting verse number isn't it?
Jesus said One is our master, and not to be called master. Those who call themselves our masters are not. By the Way in the USA, We the People hold the authority, many have just fallen asleep and forgot. This is the Great Awakening. One Nation, under God, INDIVISIBLE, with Liberty and Justice for ALL.