“In chapters 4 and 5 of Genesis, we find the so-called generations of Cain and Seth. Let us glance at them in the order in which they stand:
The above are the ten biblical patriarchs, identical with Hindu Pragapatis (Pradjapatis), and the Sephiroth of the Kabala. We say ten patriarchs, not twenty, for the Kenite line was devised for no other purpose than, 1, to carry out the idea of dualism, on which is founded the philosophy of every religion; for these two genealogical tables represent, simply, the opposing powers or principles of good and evil; and 2, as a blind for the uninitiated masses. Suppose we restore them to their primitive form, by erasing these premeditated blinds. These are so transparent as to require but a small amount of perspicacity to select, even though one should use only his unaided judgment, and were not, as we are, enabled to apply the test of the secret doctrine.
By ridding ourselves, therefore, of the Kenite names that are mere duplications of the Sethite, or of each other, we get rid of Adam; of Enoch – who, in one genealogy, is shown the father of Irad and in the other, the son of Jared; of Lamech, son of Methusael, whereas he, Lamech, is son of Methuselah in the Sethite line; of Irad (Jared), Jubal and Jabal, who, with Tubal-Cain, form a trinity in one, and that one the double of Cain; of Mehujael (who is but Mahalaleel differently spelled), and Methusael (Methuselah). This leaves us in the Kenite genealogy of chapter iv., and only, Cain, who – the first murderer and fratricide – is made to stand in his line as father of Enoch, the most virtuous of men, who does not die, but is translated alive.
Turn we now, to the Sethite table, and we find that Enos, or Enoch, comes second from Adam, and is father to Cain (an). This is no accident. There was an evident reason for this inversion of paternity; a palpable design – that, of creating confusion, and baffling inquiry.
We say, then, that the patriarchs are simply the signs of the Zodiac, emblems, in their manifold aspects, of the spiritual and physical evolution of human races, of ages, and of divisions of time. In astrology, the first four of the “Houses”, in the diagrams of the “Twelve Houses of Heaven” – namely, the first, tenth, seventh, and fourth, or the second inner square placed with its angles upward and downward, are termed angles, as being of the greatest strength and power. They answer to Adam, Noah, Cain-an, and Enoch, Alpha, Omega, evil and good, leading the whole. Furthermore, when divided (including the two secret names) into four trigons or triads, viz., fiery, airy, earthy, and watery, we find the latter corresponding to Noah.
Enoch and Lamech were doubled in the table of Cain, to fill out the required number ten in both “generations” in the Bible, instead of employing the “Secret Name”; and, in order that the patriarchs should correspond with the ten kabalistic Sephiroth, and fit at the same time the ten, and, subsequently, twelve signs of the Zodiac, in a manner comprehensible only to the kabalists.
And now, Abel having disappeared out of that line of descent, he is replaced by Seth, who was clearly an afterthought suggested by the necessity of not having the human race descend entirely from a murderer. This dilemma being apparently first noticed when the Kenite table had been completed, Adam is made (after all the generations had appeared) to beget this son, Seth. It is a suggestive fact that, whereas the double-sexed Adam of chapter 5, is made in the likeness of the Elohim (see Genesis, 1:27 and 5:1, of the same). Seth (5:3) is begotten in Adam’s “own likeness”, thus signifying that there were men of different races. Also, it is most noticeable that neither the age nor a single other particular respecting the patriarchs in the Kenite table is given, whereas the reverse is the case with those in the Sethite line.”
H. P. Blavatsky
The Mark Of God: Understanding Your "I AM Presence" 