'I Have a Dream' — Sermon Form
““Blessed are those who hunger and thirst for righteousness, for they shall be satisfied.”
— Jesus · Matthew 5:6The speech quotes Isaiah and Amos — the architecture of the most famous American speech is biblical, delivered by a Baptist minister.

Image credit & licence
Rowland Scherman · Public domain · This tag does not indicate the copyright status of the attached work. A normal copyright tag is still required. See Commons:Licensing.
Original image and licensingStrip the Scripture out of the Dream speech and there is no speech: Isaiah's valley, Amos's justice rolling down, the slaves' spiritual “My country 'tis of thee.” King also quoted the Declaration — the blend is the point — but the frame, the rhythm, and the crescendo are a sermon's.
This label distinguishes a factual historical record from the interpretation built around it. A well-documented event or influence pathway does not prove that no alternative history could produce a similar result. Grade note: the influence pathway is well documented; replacement remains a separate question
King also drew on the Declaration and Thoreau; the blend is the point — but the frame was the pulpit.
