True Faith

From the White Wolf Wiki, the most complete White Wolf reference

True Faith is a power held by the truly devout. With True Faith, for example, a brandished cross can have an effect on a vampire, mage, or werewolf instead of being merely an empty symbol of faith.

Mortals with True Faith are sometimes, but not necessarily, Hunters (see Hunter: The Reckoning).

True Faith has been know to repel, stun, and even damage Kindred, force werewolves to revert to human form, and disrupt magical attacks. It also allows an individual to use a number of miracles. Members of the Society of Leopold (the Inquisition) are so well trained in using True Faith as a weapon that one can usually destroy any supernatural entity he/she encounters.