What are characteristic of something that is cyclical?

What type of figurative language is used in this passage from "letter from birmingham jail"? just as the prophets of the eighth century b.c. left their villages and carried their "thus saith the lord" far beyond the boundaries of their hometowns, and just as the apostle paul left his village of tarsus and carried the gospel of jesus christ to the far corners of the greco roman world, so am i compelled to carry the gospel of freedom beyond my own hometown. allusion symbolism imagery metaphor

Write 3 sentences about an animal of your choice

Ineed simplifying this thesis and making it easier to understand for the reader (more concise) "no matter how religious one may be, one’s faith tends to change under unexpected and challenging circumstances."