"The word is stronger than the sword," is a quote representing that your words are mighty, even mightier than a weapon. It expresses the importance of using your language over things like violence and physical altercations, a good example of this is poetry and/or letters.
The authors point of view is first person. The pore expresses lots
Something that McCarthy wanted to do is to prove that Gustave Duran was a communist.
McCarthy actually proved this by narrating when Gustave Duran served in the communist international brigade.
Also, McCarthy claims that John Service friendship with China and communism was the only hope for the United States.
Hope this helps.