What foundational American document is M. L.K Jr. referencing when he says, “I have a dream that one day the nation will rise up and live out the true meaning of its creed: “We hold these truths to be self-evident, that all men are created equal?”

I have a dream that one day: The dream is a frame for the future and sets the stage for the rest of the words. 'Dream' is vague aspiration. 'one day' starts to make it specific.this nation will rise up: A hint of revolution, a threat to white people, that may be scary but is tempered by subsequent words.and live out the true meaning of its creed: "We hold these truths to be self-evident: that all men are created equal." : A direct quote from Thomas Jefferson, 3rd US President and author of the declaration of independence. Will be accepted as right by everyone. Lends gravitas to the speech. 'Creed' has religious connotations. Implication that this is not true today, over 150 years after it was said.

To have or to find and keep