All I can find online is the single, German translation of the “Book of John the Baptist.” I’d be curious to give it a read if my German were better. Instead, I’ll have to wait for someone to translate it into English.
The Mandaeans are the last true Gnostics in the world, every other Gnostic group are just
hippie reconstructionists who want something different in Christianity, in my mind anyway.
The Mandaeans could have at first been followers of John the Baptist, but whether or not that is true,
they did end up getting into a bunch of Gnostic junk, so warned to Timothy by Paul (1 Timothy 6:20).
I don’t believe the Mandaeans acknowledge Jesus as the true Messiah but a false Messiah and form-
er disciple of John the Baptist.
Their numbers are dwindling do to persecution but also because, so I read
somewhere, that on cannot become a Mandaean, as it is an ethnocentric
group. In other words, you have to be born into it.
I also think they don’t look at the Holy Spirit (Ruha d-Qudsha) as a good being, nor do are they fond
of the god of the Jews called Adonai. Best read A Rehabilitation of Spirit Ruha in Mandaean Religion.