Abjuration [Good]
Level: Cleric 3, Paladin 2
Components: V, S
Casting Time: 1 standard action
Range: Touch
Target: One shield or buckler touched
Duration: 1 minute/level
Saving Throw: Will negates (harmless, object)
Spell Resistance: No
You press your palm against the shield and speak the words of power. A silver radiance, in the shape of your holy symbol spreads over the shield.
The touched shield or buckler grants its wielder a +1 sacred bonus to Armor Class and on Reflex saves, +1 per five caster levels (maximum +5 at 20th level). The bonus applies only when the shield is worn or carried normally (but not, for instance, if it is slung over the shoulder).
Source: Spell Compendium, page 188.