Albert Pike was a 33rd Degree Freemason, and Sovereign Grand Master of the Ancient and Accepted Scottish Rite who had written extensively on Gnosticism in his Masonic Gnostic masterpiece, Morals and Dogma. Throughout this great book, you will find many truths that he had shared in regards to the ancient Gnostics and how their teachings live on to this very day.
They can be found all throughout the teachings and degrees of Freemasonry. As I had said before, the letter G in Masonry represents Gnosis. The ancient Gnostic teachings are also the basis of all Abrahamic religions and at the very foundation of the Kabalistic doctrines.
Pike had written in Morals and Dogma;
"The Kabalistic doctrine was long the religion of the Sage and the Savant; because, like Freemasonry, it incessantly tends toward spiritual perfection, and the fusion of the creeds and Nationalities of Mankind. In the eyes of the Kabalist, all men are his brothers; and their relative ignorance is, to him, but a reason for instructing them. There were illustrious Kabalists among the Egyptians and Greeks, whose doctrines the Orthodox Church has accepted; and among the Arabs were many, whose wisdom was not slighted by the Mediæval Church.
The Sages proudly wore the name of Kabalists. The Kabalah embodied a noble philosophy, pure, not mysterious, but symbolic. It taught the doctrine of the Unity of God, the art of knowing and explaining the essence and operations of the Supreme Being, of spiritual powers and natural forces, and of determining their action by symbolic figures; by the arrangement of the alphabet, the combinations of numbers, the inversion of letters in writing and the concealed meanings which they claimed to discover therein. The Kabalah is the key of the occult sciences; and the Gnostics were born of the Kabalists.
The science of numbers represented not only arithmetical qualities, but also all grandeur, all proportion. By it we necessarily arrive at the discovery of the Principle or First Cause of things, called at the present day THE ABSOLUTE. Or UNITY,--that loftiest term to which all philosophy directs itself; that imperious necessity of the human mind, that pivot round which it is compelled to group the aggregate of its ideas:
Unity, this source, this centre of all systematic order, this principle of existence, this central point, unknown in its essence, but manifest in its effects; Unity, that sublime centre to which the chain of causes necessarily ascends, was the august Idea toward which all the ideas of Pythagoras converged. He refused the title of Sage, which means one who knows. He invented, and applied to himself that of Philosopher, signifying one who is fond of or studies things secret and occult. The astronomy which he mysteriously taught, was astrology: his science of numbers was based on Kabalistical principles.
The Ancients, and Pythagoras himself, whose real principles have not been always understood, never meant to ascribe to numbers, that is to say, to abstract signs, any special virtue. But the Sages of Antiquity concurred in recognizing a ONE FIRST CAUSE (material or spiritual) of the existence of the Universe. Thence, UNITY became the symbol of the Supreme Deity. It was made to express, to represent God; but without attributing to the mere, number ONE any divine or supernatural virtue."
By Albert Pike, Morals and Dogma, 1871, p. 625-626