I gave several links about the Trinity elsewhere.
Here's a beginner's one.
https://carm.org/trinity
The rest of what you typed - a faith of a Muslim has already be present to actually believe that refers in any way to Muhammad.
http://www.reformedapologeticsministries.com/2016/05/revisiting-isaiah-42-addendum-theology.html
And of course certain names of certain cities will be mentioned in Islamic writings as well as Old Testament. Your prophet lived in the Middle East region. That is all.
Back to topic. Sufi Muslims and Gnosticism:
You denied that Sufi's version of Islam had nothing to do with Gnosticism, dismissing it as a 2nd century Ad Christian cult.
Is Bakhsh (1072-1077 AD) considered a major Sufi leader or writer?
This sounds like pure Gnosticism.
http://islam.uga.edu/marifah.html
i can't be bothered reading these links tbh just opinions that is all....
but look those verses in Isaiah 42 from verse 10 onwards are about islam and that much is clear.
In the old testament, isaiah, God even chose Cyrus the Great to be HIS annointed one and to do God's work...even though Cyrus didn't believe in the jewish God (he was a zoroastrian most likely). Yet somehow to you, islam is just some religion from the devil that has nothing to do with the Abrahamic religion.
Even the jews don't have your opinion and do regard islam as a true religion..
Your problem is you only expect everyone to agree with your doctrine. I believe in the new testament but not your doctrines which i see as innovations.
ok sorry, there is a difference between the word 'gnostic' and 'gnosticism' right?
See I didn't even used to know about the sect at one point. I mentioned the term gnosis/gnostics only to get told 'we reject gnosticism it was a false sect etc' so at this point if i talk of gnosis or gnostics (or if the sufi texts do) then it isn't referring to the specific sect you're familiar with.
Basically a gnostic within the sufi context is an ARIF
the word Arif means 'knower' (refering to the mystical sense of knowing, not logical knowledge)
so that link you posted the word Marifah is connected with the word Arif, it means knowledge, again referring to the mystical knowledge and not logical knowledge.
The word Arif is used extensively in the Quran as those who 'know Allah'.
Bakhsh is not his actual name, his name was Sheikh Ali Hujweri
"
--From the Persian Kashf al-mahjub--"
This particular book is easily available in english in pdf format if you want to read but it's a pretty long book.
These are some quotes from his book where the term is used
The Gnostic (arif) does not see other worldly things because
his marifat (knowledge of Allah) is total denial of others. The
denial of all other than Allah is marifat and marifat of others is
the denial of the Truth (Allah). Therefore, the Gnostic is free
from the creature and in union with the Truth. He does not
have that much heed for others that it might keep him away
from the Truth nor it is of so extreme value that it might
attract him toward itself.
One who pretends to know Allah without lowliness and fear is
not a Gnostic but an ignorant fool. The sign of Marifat
(knowledge of Allah) lies in a true desire, and a sincere desire
removes all secondary causes and severs all ties of
relationship, so that nothing remains except Allah.
Can you see how this relates to what Jesus said about the single eye?
here's the word in the quran
93 And say: "Praise be to Allah, Who will soon show you His Signs, so that ye shall know them"; and thy Lord is not unmindful of all that ye do.
(12) Waquli alhamdu lillahi sayureekum ayatihi fataA
arifoonaha wama rabbuka bighafilin AAamma taAAmaloona
now here's the the thing you have to appreciate, something i don't think you yet know
the mind is dominated by sense objects...the 5 senses...
we typically know things in their objective aspect through our senses
mystical knowledge is subjective and occurs when you concentrate on a single thing beyond the senses
it's a true vision of that thing.
"Gnosticism can be found in almost all religions, and as such, it can be viewed as more of an esoteric philosophy that unites people across various religions- though some people today claim to be Gnostics as a religion. For example, the ideas associated with a Gnostic Christian are fundamentally almost identical to a Buddha or Boddisatva in the Buddhist religion, Gnanis in Hinduism, an Arif in the Islamic tradition, and a “knower” in the Taoist tradition, and it is for this reason that it is believed that Gnosticsm had an influence on all of these religious philosophies as it spread between Egypt and Tibet, and likewise these other schools contributed to Gnostic doctrine." - Timothy Hogan