How does martin luther king jr. use structure to from his claim in "letter from birmingham jail"?

Syntax in "Letter from Birmingham Jail" by Martin Luther King Jr. The following are a few examples of syntax-based rhetorical devices: The repetition of words at the beginning of a successive clause The beginning of the both clauses contain the word "unfortunate" to emphasize King's point of the "unfortunate" circumstance that caused demonstrations and protest to be needed in the first place. 
Placing the contrasting statements next to one another emphasizes the meaning of the argument being made The repetition of similar grammatical or syntactical patterns The parallel structure in this sentence allows the reader to easily understand the argument King is making.