The Church of Light does not have a God of Truth position, but in the Master Plane, there is a title of God of Truth and Law, surpassing Archmages above all arcane mysteries, a god who has mastered truth itself.
In this Church of Light here, there's an added God of Truth, and what's more, the only subordinate deity. Now that's strange.
"Light shines upon the land but does not reach the realm of the Undead. The God of Truth used the truth he controlled to create Alchemy, Constructs, Magicians, and the Starburst Array, creating the Holy Kingdom that shelters us. Your daughter possesses an Affinity with the Holy Light, she is a Saintess chosen by God," Monica explained.
The Negris projected onto Ange's body had already vomited a pool of blood. It had always wondered what excuses were used to hoodwink these Disciples of Light.