“Free at last! Free at last! Thank God Almighty, we are free at last!”
— Martin Luther King Jr., I Have a Dream (1963)
Context
The closing words of King's address to a quarter-million people at the Lincoln Memorial. The phrase is borrowed from an old African American spiritual; King uses it as the rhetorical climax of a speech that builds for nearly seventeen minutes toward this final exhalation.
How the repetition works
The triple "free at last" works as both a personal expression of relief and a collective declaration that arrival is real. The first iteration announces it, the second confirms it, the third — preceded by "Thank God Almighty" — makes it sacred. The repetition is what allows a hard-won abstract noun to land as embodied experience.