There is a book called "The True Furqan" at http://www.islam-exposed.org/ It was written by an Arab Christian named Al-Saffee and translated by another Arab Christian named Al-Mahdi. The book presents elements of the Gospel in a way so as to reach out to Arabic speakers and challenge the Quran in it's language style and eloquence. It is also claimed that Al-Saffee was "inspired" to write this book by the Holy Spirit, and that between the two of them (Al-Saffee and Al-Mahdi) they are the two witnesses in Revelations who will be slain in Jerusalem. What I would like to know is what opinions to Christians hold regarding this book? Would any of you consider it to be authentic holy scripture, or just a money spinning attack against Islam?