Retribution: Divine Shield is E and Shield of Vengeance is Shift + E, Justicar's Vengeance is mouse wheel down (replaced Word of Glory).
Protection: Divine Shield is E, Light of the Protector is on mouse wheel down (also replacing Word of Glory). My Argent Defender, Guardian of Ancient Kings, Heirloom Trinket, Legendary Ring and anything else defense wise are mapped to my 6 side keys on my Razer Naga Hex.