6 But they further affirm that the Demiurge himself was ignorant of that offspring of his mother Achamoth, which she brought forth as a consequence of her contemplation of those angels who waited on the Saviour, and which was, like herself, of a spiritual nature. She took advantage of this ignorance to deposit it (her production) in him without his knowledge, in order that, being by his instrumentality infused into that animal soul proceeding from himself, and being thus carried as in a womb in this material body, while it gradually increased in strength, might in course of time become fitted for the reception of perfect rationality. Thus it came to pass, then, according to them, that, without any knowledge on the part of the Demiurge, the man formed by his inspiration was at the same time, through an unspeakable providence, rendered a spiritual man by the simultaneous inspiration received from Sophia.
For, as he was ignorant of his mother, so neither did he recognise her offspring. This [offspring] they also declare to be the Ecclesia, an emblem of the Ecclesia which is above. This, then, is the kind of man whom they conceive of: he has his animal soul from the Demiurge, his body from the earth, his fleshy part from matter, and his spiritual man from the mother Achamoth.
Source: Adversus haereses (New Advent)