The Quran: A Book That's Been Matched
Muslims say that the evidence for the Quran being from God is that it's so well written and superior to other books that it can't be matched, and this belief comes from the Quran itself (Surah 2:23, 10:38, 11:13, 17:88). However, just because a book is well written doesn't mean it's from God, and even if that was evidence that a book is from God, that still doesn't prove the Quran to be true because the Quran actually isn't superior to other books. A book titled "The True Furqan" (al-Furqan al-Haqq) is a book written in Arabic mirroring the Quran, but it incorporated elements of Christian teachings. This book produced the Quranic style so effectively that some people who read it aloud in public areas were thanked by Arab Muslims for reciting the Quran. This book was so explosive to the Islamic faith that the country of India banned the book "for the maintenance of security" (Notification No. 78, September 7, 2005, from Anupam Prakash, Under Secretary to the Government of India).
So, the Quran's claim that it can't be matched is simply not true, and therefore cannot be used as evidence for the Quran's divine origin.