Which device focuses on the comparison between contrasting ideas, such as "to err is human, to forgive divine"?

The chosen answer highlights antithesis as a rhetorical device that emphasizes the contrast between opposing ideas. In the example "to err is human, to forgive divine," the statement presents two contrasting concepts: the fallibility inherent in being human and the noble act of forgiveness, which is elevated to a divine status. This structure enhances the impact of the message by highlighting the differences between the concepts being compared.

Antithesis often employs parallel structure, which further emphasizes the contrast and can create a memorable phrasing. This use of contrasting ideas serves to provoke thought, highlight moral or philosophical themes, and create a more persuasive argument. By illustrating the balance and tension between these opposing points, antithesis effectively draws the reader's or listener's attention to the complexities of the subject being discussed.