“On the other hand, what might very well be of Oriental origin are purely mythical statements regarding the realm of demons, in which kabbalistic ideas like the doctrine of the sefiroth or the idea of emanation in general play no role.
These doctrines are mentioned by Isaac Cohen as coming from theurgic texts, which he connects with the “Lesser Hekhaloth” and a Sefer Malbush which, however, bear no relation to the old theurgic texts known by these names.
In these sources, Sammael and Lilith appear for the first time as the demonic couple placed at the head of the hierarchy of darkness. The connection between this strange mythic construction and the properly kabbalistic theories was only established later by the editors, the brothers Isaac and Jacob Cohen or their teachers.
The great antiquity of these ideas, the details of which I do not wish to discuss here, is also attested by the fact that the very old etymology, borrowed by the Gnostics of the second century from Jewish circles, of the name of the devil Sammael—a name that arose concurrently with that of Beliar—is still preserved here: the “blind archon,” sar summa.”
Gershom Scholem, Origins of the Kabbalah, p. 294.