Seeking the answers as to what makes one speaker more charismatic than another and why some speeches are merely effective while others move audiences to a transcendent state is a difficult task. This paper follows up on this challenge and seeks to provide some answers as to how the prophetic works of Richard Brothers moved his followers to a fervent state. The paper provides a brief description of the prophetic career of Brothers (b.1757) in 18th-century London; a summary of the literature on charisma (considered the result of a complex interaction among situation, personality, message, and audience); an analysis of Richard Brothers' charisma as a prophet, focusing on his apocalyptic writings; and observations concerning the dynamics of charisma as a rhetorical construct. Contains 165 notes. (NKA)