Enochian Language

Enochian is the language originally used by angels. Aside from its use for communication, enochian is used for various spellwork and rituals.

Characteristics
Enochian language is used by all angels. However, it has limited usage from other creatures as well. Dr. Visyak, a purgatory native, has knowledge of its written form. High-tier demons, like Alastair and Crowley, have shown the capability to use sigils as well. Crowley has exhibited knowledge not just of the written form, but also the spoken form of the language.