What the sources claim for it
In the sessions' own claim, the language of creation. As an object, a complete constructed script with a received liturgy attached.
History
Where does the Enochian Alphabet come from?
Between 1583 and 1584 Edward Kelley reported letters and words seen in a shewstone, and Dee recorded them, building up an alphabet of twenty-one characters with their own names and order, written right to left. With it came a body of text — the Calls or Keys — with English translations supplied in the same sessions.
The corpus takes no position on the sessions and can be precise about the artefact. The script is internally consistent, the received texts have a stable vocabulary and a grammar sparse enough that its status is argued over, and the whole thing was transmitted through the Golden Dawn into modern ceremonial practice, where it is used as given. Whatever else it is, it is one of the most complete constructed writing systems produced before the twentieth century.
Afterwards
What did it turn into?
Adopted wholesale by the Golden Dawn in the 1880s and by Crowley after them, and now the standard ritual language of a substantial part of modern ceremonial magic.
Which texts describe it?
None, and here is why
Waiting on the same edition. The letters are recorded in Dee and Kelley's own diaries, printed by Casaubon in 1659 and long out of copyright. Until that text is in the corpus this page can say what the alphabet is and cannot show a passage describing it.
Nearby
Related marks
The Celestial Alphabets
Three alphabets Agrippa prints for writing the names of angels — Hebrew letters redrawn with rings at the joints, so that a script becomes a set of sigils.
Sigillum Dei Aemeth
A nine-inch wax disc of nested heptagons carrying angel names, made to stand under the legs of a table — the physical foundation of the Enochian sessions.
The Pentagram
A five-pointed star drawn in one unbroken line — an accounting mark, a Pythagorean password, a Christian emblem of the five wounds, and only recently a sign of evil.
The Tetragrammaton
Four letters that stopped being pronounced and became, in consequence, the most powerful thing you could write on a piece of equipment.
The Bronze Serpent
A healing standard that stood in the Temple for centuries until a reforming king smashed it — the Hebrew Bible's own account of a symbol going wrong.
The Sator Square
Five Latin words in a grid that reads the same in four directions, scratched on a wall at Pompeii and still being cut into churches a thousand years later.