PF energy resistances

[Jlooney]

If you gain an energy resist from one source but gain it again from another do they stack? I know some instances says they do but others don't say they don't. can anyone help me out

[Novawurmson]

Energy Resistance (http://www.d20pfsrd.com/gamemastering/special-abilities#TOC-Energy-Resistance) (the creature special ability) explicitly doesn't stack with spells.

Here's James Jacobs saying that energy resistance doesn't stack (http://paizo.com/threads/rzs2mjyb?Do-energy-resistances-stack#2), though it's not official FAQ.