Final answer:
An allusion to the Bible is when a reference is made to a biblical story, character, or event in a literary work. It is appropriate because the Bible is a widely known and influential text that holds significant cultural and religious significance.
Step-by-step explanation:
An allusion to the Bible is when a reference is made to a biblical story, character, or event in a literary work. It is appropriate because the Bible is a widely known and influential text that holds significant cultural and religious significance. By using biblical allusions, authors can add depth, meaning, and symbolism to their work, allowing readers to make connections and gain a deeper understanding of the themes and messages being conveyed.