Answer:
parallelism
Step-by-step explanation:
In this text, King uses this phrase twice, in similar instances and with similar sentences. The literary device that he is using is parallelism. Parallelism occurs when an author employs components that are grammatically similar, or the same in construction, sound, meaning and meter. These are found in literary works in order to give more balance and rhythm to the text, and thus, make it more persuasive.