"According to The DaVinci Code, the ancient scriptures of the Gnostics confirm the marriage of Jesus of Nazareth and Mary Magdalene, and also outline a deeper version of Christianity that is much closer to the true teachings of Jesus than the orthodox faith of modern Christians.
Unfortunately, examination of the Gnostic scriptures reveals an elitist, anti-Semitic doctrine that dismissed notions of sin and redemption and instead concentrated on secret knowledge about God and the spirit realm that was revealed through the teachings of Jesus of Nazareth and through special dispensations from spirit beings. Gnostics believed that only those with both the intellectual capacity to understand the order of the cosmos and the spiritual discipline to abandon the pleasures of the flesh, would truly be saved." Read More.
There are several parts to this article, try and read them all. Gnosticism by its nature is elitist, and really makes very little sense.