"These verses explain why an individual needs salvation and how an individual can experience salvation."
Dude or Gal this is a personal Question, Since you asked this that means you havent experienced Salvation yet?
I think you mean character development, if they are never changing then they are characters that will change to mature and learn differently and evolve around their experience
buck has admiration for nature
- repetition is definitely one, there are lots are parts that repeat but the last two lines are an example
- hyperbole in parts like "just like we always talked about" bc they didn't literally always talk about
- assonance, i believe not 100% on this one, in the red lights stop signs part bc the 's' sound repeats
- rhyme is also in there like the two lines "who always made me doubt" and "she's everything i'm insecure about"
if these don't work let me know and i'll try to find more !
hope this helps !!