From BRWiki
Haelyn ยป Book of Laws
Haelyn's scripture, the Book of Laws, appeared in the Avelerine Cathedral, the first temple of Haelyn, on the 6th of Pasiphiel the year following Deismaar, where it remains to this day. The church of Haelyn now celebrates that day as the Day of Holy Justice. The original Book of Laws resides in a vault in the Avelerine Cathedral in Aerele, and is the source of much pilgrimage and veneration.
The church draws from centuries of close and sophisticated study of the Book of Laws to defend its exacting dogma, which at its heart holds that a society can thrive only by adhering to a strict rule of law. Laws, the church believes, exist to regulate a person's inclination to place his own needs over those of the society as a whole. The only way to preserve the rule of law is to ensure that every member of society has a specific function with mutual obligations to other members. As it is the responsibility of the ruler to guide the endeavors of his people, so is it the responsibility of the ruled to follow their ruler's dictates.