Tyrael’s reference is the Archangel from the Diablo Game series

Diablo is an action role-playing hack-and-slash computer video game series developed by Blizzard North and published by Blizzard Entertainment. The game, with its dark fantasy and horror themes, was conceptualized and designed by David Brevik and Erich Schaefer, who, with Max Schaefer, acted as project leads on the game.

The Archangels are the strongest Angels as well as the first angels who came from Anu's Spine. There were 13 archangels in all: Malthael, Itherael, Auriel, Imperius, Tyrael, Inarius, Izual, Urzael, Yaerius, Khalmiel and Ezkiel. Malthael is born alone while the other Archangels are born in pairs.

The Crystal Arch is the heart of the High Heavens. Located atop the Silver Spire, it is the birthplace of angels. Mystics have described the Arch as being composed of uncountable diamond facets that shimmer with a brilliance indescribable in mortal words. The Arch is said to be the spine of the creator god Anu, and to hum with a remnant of its essence that permeates all of Heaven.

Each of the five original archangels embodies a concept (Valour, Justice, Hope, Fate, Death), if this archangel disappears, the concept itself gradually disappears. These first archangels were part of a special council called the Council of Angiris. The concept of each archangel was spread throughout the celestial world.

The Angiris Council is the highest known authority of the High Heavens. It consists of five senior Archangels who govern and administrate the laws and rules by which all other Angels abide, a heavenly counterpart and opposing force to the three Prime Evils of the Burning Hells, their eternal adversaries. Each member of the Council has their own specific sphere of influence, which define what they are and their respective function in the High Heavens, much like the Prime Evils themselves.