When we have broken our god of tradition and ceased from our god of ________, then may God fire the heart with his presence.

In first part of sentence, “god” means any of various beings conceived of as supernatural, immortal and having special powers over the lives and affairs of people and the course of nature; and this is our traditional god. The author's belief in god seems contrary to the traditional (“broken” and “ceased” gives the clue) concept of god. Therefore, a negative connotation would characterize the blank. Of all the options, “rhetoric” (language that is showy and elaborate but largely empty of clear ideas or sincere emotions; artificial eloquence) when replaces the blank gives a cogent meaning to the sentence. Hence, (1) is the answer.