The frame is startling in itself. Where the canonical gospels give the risen Jesus days or weeks, Pistis Sophia has him remain with the disciples for eleven years, teaching them only as far as a certain level, before ascending, being clothed in a garment of light and returning to disclose the rest. Everything of substance in the book happens in that extended afterwards.
The central story is the fall of Pistis Sophia, faith-wisdom. Deceived by a false light, she descends from her station in the thirteenth aeon into the lower regions, is stripped of her power by a lion-faced ruler and other hostile powers, and cries out. Her cries take the form of a series of repentances, thirteen of them, each recited, then interpreted by a disciple who matches it to a psalm or to an ode of Solomon. She is progressively raised, restored and returned to her place. The later books turn to the fate of souls, the punishments awaiting the unpurified, the mysteries that release them, and a scheme of ascent through the ranks of the cosmos.
The disciples are named and they speak, and the distribution is unusual. Mary Magdalene puts by far the greatest number of questions and supplies most of the interpretations, and Jesus repeatedly commends her understanding; Peter at one point objects that she does not let the men have their turn. Salome, Martha and Mary the mother also speak. Whatever the community behind the text practised, it was content to place a woman at the intellectual centre of its scripture, and it recorded the resentment that provoked.