Many of these movements used texts related to Christianity, with some identifying themselves as specifically Christian, though quite different from the Orthodox or Roman Catholic forms. Jesus and several of his apostles, such as Thomas the Apostle, claimed as the founder of the Thomasine form of Gnosticism, figure in many Gnostic texts. Mary Magdalene is respected as a Gnostic leader, and is considered superior to the twelve apostles by some gnostic texts, such as the Gospel of Mary. John the Evangelist is claimed as a Gnostic by some Gnostic interpreters, as is even St. Paul. Most of the literature from this category is known to us through the Nag Hammadi Library.