Two months before the March on Washington, King stood before a throng of 150,000 people at Cobo Hall in Detroit to expound upon making “the American Dream a reality”. King repeatedly exclaimed, “I have a dream this afternoon”. He articulated the words of the prophets Amos and Isaiah, declaring that “justice will roll down like waters, and righteousness like a mighty stream,” for “every valley shall be exalted, and every hill and mountain shall be made low”. As he had done numerous times in the previous two years, King concluded his message imagining the day “when all of God’s children, black men and white men, Jews and Gentiles, Protestants and Catholics, will be able to join hands and sing with the Negroes in the spiritual of old: Free at last! Free at last! Thank God Almighty, we are free at last!”.
Speech at the Great March on Detroit