Final answer:
The titles of the Catholic Epistles come from their universal (catholic) nature, as they were written to address issues relevant to all Christians, not just specific communities.
Step-by-step explanation:
The titles of the Catholic Epistles stem from the fact that these letters address universal Christian topics. These epistles are named 'Catholic,' which means 'universal' in Greek, because they are not written to a specific individual or community but are instead intended for a broader audience of believers. The Catholic Epistles include the books of James, 1 and 2 Peter, 1, 2, and 3 John, and Jude in the New Testament. The term 'Catholic' in this context does not relate to the Roman Catholic Church directly, but to the universality of the messages contained within the letters.