Protoevangelio de Santiago
Regarding the claim of divine origin, critics refer to preexisting sources, not only taken from the Bible, supposed to be older revelations of God, but also from heretic, apocryphic and talmudic sources, such as The Syriac Infancy Gospel and Gospel of James. However the Bible was not translated into Arabic until after the completion of the Quran with other Judeo-Christian sources being translated even later. Due to rejection of Crucifixion of Jesus in the Quran, some scholars also suspect Manichaean, a dualistic religion believing in two eternal forces, influences on the Quran.