The Boy Who Called God She (The Fantasy World of Nancy Springer)

Derek relishes being the bully of his Catholic school, and when Julian arrives with his purple hair, he seems like an easy target. When Julian starts asserting that God might actually be a woman, Derek is immediately enraged and becomes determined to get Julian to recant his thought, no matter the price. It soon becomes apparent that perhaps Julian has some strength Derek isn't quite prepared for, and that the boy with the purple hair knows something more than he's telling. A short story.