Final answer:
The rhetorical device used in the example is repetition.
Step-by-step explanation:
The rhetorical device used in the example "For many are called, but few are chosen" is repetition. Repetition is a powerful rhetorical device where a word or phrase is repeated to build emphasis. In this biblical verse from Matthew 22:14, the phrase "many are called, but few are chosen" is repeated to highlight the idea that although many may be invited, only a select few are ultimately chosen.