There are some who doubt that the Bible gospels were written by the men who they're named after -- Matthew, Mark, Luke and John.
Matthew 9:9 - KJV says, "And as Jesus passed forth from thence, he saw a man, named Matthew, sitting at the receipt of custom: and he saith unto him, Follow me. And he arose, and followed him."
IF Matthew had written the book of Matthew would he say as is mentioned in Matthew 9:9 - KJV, " . . . he saw a man, named Matthew . . ." ?
IF Matthew wrote the book of Matthew, wouldn't he have said, "And as Jesus passed forth from thence, HE SAW ME . . . and he saith UNTO ME, Follow me . . .?"
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I doubt that Matthew wrote the book of Matthew. I also doubt that men named Mark, Luke and John wrote the books named after them. In that region, European names weren't the names . . . Aren't Matthew, Mark, Luke and John European and NOT Middle Eastern names?
In the book of Acts we read names like Ananias and Sapphira, etc. Throughout the Bible we read names like Isaiah, Jeremiah, Zephaniah, Malachi, Ezekiel, Habakkuk, etc. Then Luke, Mark, Matthew, and John -- European names? Huh?
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I read the book Gospel Fictions and found it more than slightly credible. Below is the link to the book, and below that is a link to a very helpful video from YouTube. It sheds more light on the matter of the gospel, etc. Particularly, I was struck by the parts where the 31:00, 55:00 and 1:11:18 marks begin on the video.
http://www.amazon.com/Gospel-Fictions-Randel-Helms-ebook/dp/B002I61F3A/ref=sr_1_1?ie=UTF8&qid=1416279016&sr=8-1&keywords=Gospel+Fictions
YouTube video titled, "Caesar's Messiah -- The Roman Conspiracy
https://www.youtube.com/watch?v=QrCMeQIB7Jg