structural:reformatting, quality:corruption, linguistic:paraphrasing, information:highlighting, information:classification
Restricting Gnosticism

In the late 1980s scholars voiced concerns about the broadness of "Gnosticism" as a meaningful category. Bentley Layton proposed to categorize Gnosticism by delineating which groups were marked as gnostic in ancient texts. According to Layton, this term was mainly applied by heresiologists to the myth described in the Apocryphon of John, and was used mainly by the Sethians and the Ophites. According to Layton, texts which refer to this myth can be called "classical Gnostic".

In addition, Alastair Logan uses social theory to identify Gnosticism. He uses Rodney Stark and William Bainbridge's sociological theory on traditional religion, sects and cults. According to Logan, the Gnostics were a cult, at odds with the society at large.