Answer:
He's ashamed of his daughter. Thinking of the shame she brought him(His daughter is converting to be a Christian) To Shylock Christians are his sworn enemies.
Providing the dates in which the story takes place
It says in the text that millions or people had come from different parts of the country to go into Washington, D.C. to protest. So congregate means to gather around in a mass.
So the context clues would be “meet on the National Mall” “millions of people” “their voices heard”.
hope this helps
The Open Boat” conveys a feeling of loneliness that comes from man's understanding that he is alone in the universe and insignificant in its workings. Underneath the men's and narrator's collective rants at fate and the universe is the fear of nothingness.