3 They go on to say that the Demiurge imagined that he created all these things of himself, while he in reality made them in conjunction with the productive power of Achamoth. He formed the heavens, yet was ignorant of the heavens; he fashioned man, yet knew not man; he brought to light the earth, yet had no acquaintance with the earth; and, in like manner, they declare that he was ignorant of the forms of all that he made, and knew not even of the existence of his own mother, but imagined that he himself was all things. They further affirm that his mother originated this opinion in his mind, because she desired to bring him forth possessed of such a character that he should be the head and source of his own essence, and the absolute ruler over every kind of operation [that was afterwards attempted]. This mother they also call Ogdoad, Sophia, Terra, Jerusalem, Holy Spirit, and, with a masculine reference, Lord. Her place of habitation is an intermediate one, above the Demiurge indeed, but below and outside of the Pleroma, even to the end.
Source: Adversus haereses (New Advent)