By Kenyatta Gilbert. Traces the roots of Martin Luther King’s call for justice, to African American prophetic preaching that arose in an earlier moment of American history by profiling 3 clerics of the first half of the twentieth century whose voices gave birth to a distinctive form of prophetic preaching: Baptist pastor Reverend Adam Clayton Powell Sr., A.M.E. Bishop Reverdy Cassius Ransom, and A.M.E. Zion pastor Reverend Florence Spearing Randolph. Learn more.