Gift of Discernment

(Player's Guide to Faerûn, page 176, DnD 3.5)

[Exalted]

You can rely on your conscience to steer you away from evil deeds.

Benefit

If you take a moment (a free action) to contemplate an action you are about to perform, you know with certainty whether that action will adversely affect your alignment and standing with your deity (if any). This knowledge is identical with that provided by a phylactery of faithfulness.