4 As, then, they represent all material substance to be formed from three passions, viz., fear, grief, and perplexity, the account they give is as follows: Animal substances originated from fear and from conversion; the Demiurge they also describe as owing his origin to conversion; but the existence of all the other animal substances they ascribe to fear, such as the souls of irrational animals, and of wild beasts, and men. And on this account, he (the Demiurge), being incapable of recognising any spiritual essences, imagined himself to be God alone, and declared through the prophets, “I am God, and besides me there is none else.” They further teach that the spirits of wickedness derived their origin from grief.
Hence the devil, whom they also call Cosmocrator (the ruler of the world), and the demons, and the angels, and every wicked spiritual being that exists, found the source of their existence. They represent the Demiurge as being the son of that mother of theirs (Achamoth), and Cosmocrator as the creature of the Demiurge. Cosmocrator has knowledge of what is above himself, because he is a spirit of wickedness; but the Demiurge is ignorant of such things, inasmuch as he is merely animal.
Their mother dwells in that place which is above the heavens, that is, in the intermediate abode; the Demiurge in the heavenly place, that is, in the hebdomad; but the Cosmocrator in this our world. The corporeal elements of the world, again, sprang, as we before remarked, from bewilderment and perplexity, as from a more ignoble source. Thus the earth arose from her state of stupor; water from the agitation caused by her fear; air from the consolidation of her grief; while fire, producing death and corruption, was inherent in all these elements, even as they teach that ignorance also lay concealed in these three passions.
Source: Adversus haereses (New Advent)