Final answer:
The provided text does not detail specific similes used by Rep. John Lewis regarding Selma and the Civil Rights Movement. Instead, it mentions the overall use of prophetic rhetoric and biblical prophecy in the movement.
Step-by-step explanation:
The similes used by Rep. John Lewis to describe the sacred language associated with Selma and the movement are not detailed in the provided text. While discussing the significance of the Selma marches and the importance of the Civil Rights Movement, it is noted that Lewis expressed the goal of the march as a means to 'dramatize to our nation and to the world our determination to win first-class citizenship.' However, for specific similes used by him in his speeches, one would have to refer to transcripts or recordings of those speeches. The provided text instead discusses the rhetorical strategies used during the Civil Rights Movement, including the use of prophetic rhetoric and references to biblical prophecy by various civil rights leaders, which helped to transform the nation and advocate for the cause.