How do we know that the Bible isn't fictional?

Hello, I have a coworker who has said that she firmly believes that the bible is a work of fiction. What can I do to prove that the bible is, in fact, not a work of fiction? Where would I start to find evidence for my case? Thank you very much for your time and God bless!

The following links should answer your questions about the Bible. If you have any further questions, please contact Catholic Answers directly.

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Why do Catholics say that the creation stories are symbolic?
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Are the Gospels historical?

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