During his opening invocation (line 1-26) million use several refrence to locations in the Bible and to the "Aonian Mount" (line 15) where the Greek gods lived what is his purpose in doing so?

With his reference to “the Aonian mount,” or Mount Helicon in Greece, Milton deliberately invites comparison with Classical antecedents. He avers that his work will supersede these predecessors and will accomplish what has not yet been achieved: a biblical epic in English.