AC Bonus (Su)
Source: Advanced Class Guide, p. 131
A deity protects her sacred fist as long as he is unarmored and unencumbered. A sacred fist adds his Wisdom modifier (minimum 0) to his AC and his CMD. In addition, a sacred fist gains a +1 dodge bonus to AC and CMD at 4th level. This bonus increases by 1 for every 4 levels thereafter (to a maximum of +5 at 20th level).
These bonuses to AC apply even against touch attacks or when the sacred fist is flat-footed. He loses these bonuses when he is immobilized or helpless, when he wears any armor, when he carries a shield, or when he carries a medium or heavy load. This counts as the monk ability of the same name, and the sacred fist’s warpriest levels stack with monk levels for determining the benefits.