Douglass's use of rhetorical devices may seem a bit awkward to us in the modern day. Especially when his literary works were usually straightforward. Considering this, he does it in a way that you can understand his illustration. In other words, he doesn't write as long or, as complicated sentences. On top of that he tries to speak informally, as if it were just you and him in the first person.
The “Narrative of Frederick Douglass” actually is a memoir that is quite similar to the style of the King James Bible. Similarly, it would be one book that almost all of his audiences would be familiar with. Although Douglass shows off a little too much as the reader gets into a more depth of his writing.Likewise,its considered normal since he had to fight so hard to learn how to read and write back