Short Answer 
King’s speech utilizes logos by presenting logical arguments for racial equality, drawing on historical references like the Emancipation Proclamation. He establishes ethos through his credibility as a civil rights leader and minister, incorporating biblical themes, and evokes pathos by appealing to the audience’s emotions with his hopeful vision of a just future.
Step 1: Understanding Logos
In King’s speech, logos refers to the use of logical arguments to support the case for racial equality. He incorporates historical references, like the Emancipation Proclamation, to logically assert that African Americans deserve the same rights as white Americans. Furthermore, he emphasizes urgency by stating that now is the critical time for justice, effectively dismantling arguments favoring delays in civil rights.
Step 2: Establishing Ethos
King establishes ethos, or credibility, through his position as a civil rights leader and minister. His moral authority is underscored by incorporating biblical references and shared values that resonate with his audience, such as freedom and justice. By aligning his message with ethical principles, he enhances his credibility and reinforces the righteous nature of his cause, positioning himself as a trustworthy advocate for the oppressed.
Step 3: Evoking Pathos
Pathos plays a crucial role in King’s speech, as he skillfully appeals to the emotions of his audience. Through evocative language and repetition of “I have a dream,” he instills feelings of hope and brotherhood among all Americans. King paints vivid mental images of a future where individuals are judged by their character rather than race, effectively resonating with the audience’s sense of justice and compassion.