The Lhankor Mhy cult are famed as the lovers of wisdom (philosophers) and knowledge (philognosis) in Dragon Pass and the Holy Country. In the First Age, the priests of the Knowing God encountered the buseri of Dara Happa. They discovered that different people had different names and stories for the same god and realized they worshiped the same thing – Knowledge.
In the Second Age, the priests of the Knowing God assisted the God Learners in their discoveries, resulting in many long-lost secrets being reclaimed by the temples of Knowledge. They helped devise a written form of Auld Wyrmish for the Empire of the Wyrms friends and provided scribes to administer the lands of the Dragonfriends and the Only Old One.
Most of the world’s written knowledge was lost in the cataclysms that ended the Second Age, but the priests of the Knowing God have spent the age gathering texts, preserving knowledge, and regaining what was lost. They were greatly helped in this by the patronage of Belintar and the Sartar Dynasty (who built great libraries in the mountains of Dragon Pass).
Lhankor Mhy is respected by the Lunar Empire, although favoritism is shown to the breakaway cult of Irrippi Ontor. Lhankor Mhy is doctrinally neutral towards the Lunar Empire.
The cult uses sorcery as 1. a magic based on writings, and 2. more useful to its purposes than spirit magic. Few priests of the Knowing God bother to use sorcery for purposes other than the acquisition of knowledge.
The cult has been able to impose a remarkable consistency on written texts in the Second and Third Ages, most likely so that temples could easily communicate with each other and share knowledge.