Which line from the novel the secret garden is an example of dialect

How do you think langley employees reconcile the difference between the work they do that is innovative and advances humankind with the work they do that destroys it?

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

Can someone me answer this english question