English Language Homework

Can somebody help me identify the word techniques used in MLK speech.

I have a dream that one day on the red hills on Georgia, the sons of former slaves and sons of former slave owners will be able to sit down together at the table of brotherhood.

I have a dream that my four little children will one day live in a nation where they will not be judged by the color of their skin byt by the content of their character

I have a dream today!

Thanks