Path of Faith: A Character Resource for Clerics, Druids, and Paladins is a player's resource and the fourth Legends & Lairs character class sourcebook.

From the publisher:

The essential d20 System resource for clerics, druids, and paladins!

This definitive sourcebook provides players and DMs alike with everything they need to expand and improve characters of faith in their d20 System game. Path of Faith includes:

• 13 new prestige classes, including the dervish, the inquisitor, and the daughter of storms
  
• 10 new legendary classes, high-level character options for characters of truly legendary ability, skill, and renown
  
• New faith disciplines, such as the everlasting warriors of the phoenix
  
• New organizational templates, including the fanatical Ashen Circle, a company of druids who will do anything in their power to protect their woodland home
  
• Rules for building cults, expanded rules for small gods disciples, unique holy symbols, positive and negative energy, powerful racial ceremonies, and much more