1) King often used powerful, emotive language to appeal to the hearts of his audience. For example, in his "I Have a Dream" speech, he uses phrases like "let freedom ring" and "unfurled like the flag of freedom" to evoke feelings of hope and patriotism.
2) He also frequently employed repetition to emphasize the importance of his message. In the same speech, he repeats the phrase "I have a dream" multiple times to drive home the idea that racial equality is a shared vision.
3) King also used inclusive language to unite people of different backgrounds and experiences. For example, in his "Letter from Birmingham Jail" he wrote "Injustice anywhere is a threat to justice everywhere." This statement speaks to the idea that the struggle for civil rights is not limited to a specific group of people, but rather affects all of society.