The Kassideans or Assideans...arose either during the Captivity or soon after the restoration...The Essenians were, however, undoubtedly connected with the Temple (of Solomon), as their origin is derived by the learned Scalier, with every appearance of truth, from the Kassideans, a fraternity of Jewish devotees, who, in the language of Laurie, had associated together as 'Knights of the Temple of Jerusalem.'...From the Essenians Pythagoras derived much, if not all, of the knowledge and the ceremonies with which he clothed the esoteric school of his philosophy.
Albert MackeyThe Cabal is of two kinds, theoretical and practical, with the practical Cabala, which is engaged in the construction of talismans and amulets, we have nothing to do. The theoretical is divided into the lineal and dogmatic. The dogmatic is nothing more than the summary of the metaphysical doctrine taught by the Cabalist doctors. It is, in other words, the system of the Jewish philosophy.
Albert MackeySo important , indeed, is it (Light), and so much does it pervade with its influence the whole Masonic system, that Freemasonry itself anciently received, among other appellations, that of Lux, or Light, to signify that it is to be regarded as that sublime doctrine of Divine Truth by which the path of him who has attained it is to be illuminated in his pilgrimage of life.
Albert Mackey