I think it’s personification ! simile is comparing 2 things WITH like / as, example : the dog was big like a lion . metaphor is comparing 2 things WITHOUT like / as, example : the dog was a big lion . personification is giving a non living thing people character, example : the pencil was dancing ! good luck !
What this statement means is that even if people are speaking bad on your name do not live up to the bad things they said about you. Or in other words prove them wrong.