Green Temple can be described as the original ideology of the necromancers. Its primary tenets are peace and goodwill. Green Temple necromancers believe in offering friendship first, and resolving disputes through negotiation. Though often thought pacifists, Green Temple necromancers have been known to fight. Their principal function in society, is to raise the souls of the recently dead, to commune with their living relatives, and so alleviate such things as grief, paranoia, and disputes over inheritance. Other necromancers of this persuasion, specialize as funerary priests (including, at some times, those who worked the Ash pits), or re-animate corpses as slaves, which they use themselves, or lease to their neighbors.
During the Golden and Second ages, Green Temples were well known for their hospitality. Any traveler could knock at the door of a necromancers' temple and receive a hot meal and a warm bed. If one were to sum up the Green Temple philosophy in a few words, it would be that they believe in making friends.
The Green Temple is undoubtedly the oldest theology in Necromancy, dateing back to Rubiceye himself. According to necromantic lore, he was a kindly and well-liked man. This differs significantly from the historical record, which generally considers him a monster. It is possible the 'peace and goodwill' bit evolved shortly after his death, and during the Golden Age of Necromancy, the histories might have been rewritten slightly to reflect a more positive origin.
Throughout the Mage Wars, necromancers (both grey and green) often sold their services as mercenaries. However, Green Temple necromancers could easily be distingushed by their competitive rates and willingness to change sides in a more worthy cause. It was Green Temple necromancers who eventually joined Eieber to help end the Mage Wars entirely.
In the Golden and Second Ages, because most temples did not identify with a specific theology (individual priests within a temple taught according to their own beliefs), Necromancy Temples spread around the known worlds.
The schism of the temples happened at the begining of the Third Age, wherein for the first time, nearly every temple identified itself with one of the two theologies.