Detect Good(Player's Handbook v.3.5, p. 219)
Level: Cleric 1, Adept 1, Ebonmar Infiltrator 1, Divine Bard 1, Wu Jen 1, Death Master 1, Savant 1 (Divine), Urban Ranger 1, Urban Adept 1,
Components: V, S, DF,
Casting Time: 1 standard action
Range: 60 ft.
Area: Cone-shaped emanation
Duration: Concentration, up to 10 min./ level (D)
Saving Throw: None
Spell Resistance: No
This spell functions like detect evil, except that it detects the auras of good creatures, clerics or paladins of good deities, good spells, and good magic items, and you are vulnerable to an overwhelming good aura if you are evil. Healing potions, antidotes, and similar beneficial items are not good.