E.P.
Born2Preach writes
Look, if the computer's stuff was in English, how did John understand it? How did the two of them communicate when the time traveller probably didn't speak the same language as John?
You reply
Jar has half answered your questions.
The referenced CD-Rom was available in several languages, German, English, French, and ITALIAN.
The Italian language is the language of Rome. John (of Revelations) was held in a Roman jail. Romans of that era spoke Latin. Scribes of the day were knowledgable people.
Perhaps I missed it but where did these people get power to run a computer much less a computer itself to use the CD-Rom?