You have learned the secrets of an ancient prayer that wards off the attacks of demons.
Benefit: As a standard action, you can recite a holy chant that affects demons as if you were under the effect of a sanctuary spell (caster level equal to 1/2 your Hit Dice + your Charisma modifier).
PCh:FG. Copyright 2010, Paizo Publishing, LLC; Authors: Joshua J. Frost, Jason Nelson, and Sean K Reynolds.