Flash of Light (rank 1)

• Devotion AuraLevel 1 · Rank 1
• Seal of RighteousnessLevel 1 · Rank 1
• Blessing of MightLevel 4 · Rank 1
• JudgementLevel 4
• Divine ProtectionLevel 6 · Rank 1
• Seal of the CrusaderLevel 6 · Rank 1
• Hammer of JusticeLevel 8 · Rank 1
• PurifyLevel 8
• Blessing of ProtectionLevel 10 · Rank 1
• Lay on HandsLevel 10 · Rank 1
• RedemptionLevel 12 · Rank 1
• Blessing of WisdomLevel 14 · Rank 1
• Retribution AuraLevel 16 · Rank 1
• Righteous FuryLevel 16
• Blessing of FreedomLevel 18
• Blessing of KingsLevel 20
• ConsecrationLevel 20 · Rank 1
• ExorcismLevel 20 · Rank 1
• Flash of LightLevel 20 · Rank 1
• Seal of CommandLevel 20 · Rank 1
• Concentration AuraLevel 22
• Seal of JusticeLevel 22
• Blessing of SalvationLevel 26
• Shadow Resistance AuraLevel 28 · Rank 1
• Divine InterventionLevel 30
• Seal of LightLevel 30 · Rank 1
• Frost Resistance AuraLevel 32 · Rank 1
• Divine ShieldLevel 34 · Rank 1
• Fire Resistance AuraLevel 36 · Rank 1
• Seal of WisdomLevel 38 · Rank 1
• Blessing of LightLevel 40 · Rank 1
• Holy ShieldLevel 40 · Rank 1
• Holy ShockLevel 40 · Rank 1
• RepentanceLevel 40
• CleanseLevel 42
• Hammer of WrathLevel 44 · Rank 1
• Blessing of SacrificeLevel 46 · Rank 1
• Holy WrathLevel 50 · Rank 1
• Greater Blessing of MightLevel 52 · Rank 1
• Greater Blessing of WisdomLevel 54 · Rank 1

And 3 more.

The free addon pack puts it on your bars, or see the whole Paladin spell list.