Blessing of Protection: At-will, swift, 24 hours; subject gains a ward lasting all day, or until used. On use, as an immediate action, it grants a bonus of 1d4 + your level to one defense roll or saving throw.
Power Word: Shield: At-will, swift, ranged; subject gains Absorb 100% (all), limit medium damage.
Resistance: At-will, swift, ranged, sustained; subject gains Resist 50% to one common form of energy damage: fire, frost, or lightning. Subject sustains the effect with its own concentration.
Sanctuary: At-will, immediate, ranged; subject is invulnerable, but unable to take hostile actions, until your next turn. If target is hostile, Cha negates. Subject cannot receive this benefit more than once per encounter.
Feats
Retributive Shield: whenever your Power Word: Shield blocks damage, it inflicts the same amount of holy damage on the attacker.
Rank 2
PW:S blocks heavy damage.
Power Word: Freedom: At-will, swift, ranged; subject is immediately freed of one effect that controls its actions, limits its movement, forces it to move, etc. Alternatively, all such effects can be dispelled; roll Cha against each to dispel it.
Greater Resistance: Subject can resist less common types such as arcane, necrotic, psychic, poison, disease, or shadow; or they can resist common physical damage types such as slashing, piercing, bludgeoning, explosive, thermal, electromagnetic.
Sacrificial Lamb: Reaction to an ally suffering harm, ranged; you negate damage or debilitation to an ally, instead suffering it yourself. Does not function if you are currently invulnerable.
Rank 3
PW:S regenerates half its limit each round
Death Ward (block negative levels, ability damage, and death effects)
Power Word: Barrier: At-will, swift, ranged, circle 3; all subjects inside gain Absorb 100% (all), limit 200% heavy damage, while inside area. Damage limit is per casting, not per target.
Salvation: At-will, immediate, ranged; subject may choose one ongoing effect with which they are allowed to save to end, and they immediately succeed on the save as if they rolled a natural 20. Subject cannot receive this benefit more than once per day.