Direct, replicable proof of the existence of a deity in one's person might make social occasions somewhat awkward.
The (New!) Red Handbook of Doom: a DM's Handbook for running The Red Hand of Doom A 3.5 DM's Guide to Using and Improving Monsters The Critical Hit Handbook The Runeblaster: a 3.5 Runecaster Handbook Grand GITP List of 3.5 Handbooks, Guides, and Compendiums