The lightnings trembled And in thy Silence was his Sentence, And in his Soul a vain repentance, And evil dread so ill dissembled, That in his hand the lightnings trembled. Lord Byron, Prometheus idefiancesilence
Structural parallelism If the new phrase has the same structure as the preceding one, its words can be slotted into the waiting tree, and the reader will absorb it effortlessly. The pattern is called structural parallelism, and it is one of the oldest tricks in the book for elegant (and often stirring) prose. “He maketh me to lie down in green pastures; he leadeth me beside the still waters.” Steven Pinker, The Sense of Style The principle of parallel construction