Demiurge

A demiurge or craftsman god takes pre-existing matter and fashions it in light of the eternal Forms.

[T]he demiurgus is father, and power and intellect. And he possesses these things as much as possible on account of intelligibles. For he is a God as father, on account of them. He is also power, and the generator of wholes, and knows beings intellectually, on account of them. For in them intelligible knowledge first subsists. Much more therefore are father, power and intellect in intelligibles; from which also the demiurgus being filled, participates of this triad.

The universe, he [Plato] proposes, is the product of rational, purposive, and beneficent agency. It is the handiwork of a divine Craftsman ("Demiurge," dêmiourgos, 28a6), who, imitating an unchanging and eternal model, imposes mathematical order on a preexistent chaos to generate the ordered universe (kosmos).

The Gnostic Demiurge then assumes a surprising likeness to Ahriman, the evil counter-creator of Ormuzd in Mazdean philosophy. The character of the Gnostic Demiurge became still more complicated when in some systems he was identified with Jehovah, the God of the Jews or of the Old Testament, and was brought in opposition to Christ of the New Testament, the Only-Begotten Son of the Supreme and Good God.

This was the earnest attempt of a Christian to explain in some detail how God might act using natural law, although his critics noted that such a Creator had more in common with a gnostic demiurge than the transcendent God of the Judeo-Christian tradition.

Common to all authentic Gnostic schools are teachings on the demiurgos and archons. However, exactly what the demiurgos and archons are in the symbolic and mystical language of the various Gnostic traditions can be very different from one tradition to another. The word demiurgos means "creator of the world," "false creator," or "false god." Archons mean "rulers" and indicate spiritual or cosmic forces associated with the demiurgos. […] [S]ome schools view the demiurgos quite literally as the God of the Old Testament, while others do not view Yahweh as the demiurgos at all.

An abiding tradition depicted the sage-kings of yore as demiurges who invented useful technologies to advance the progress of civilization. For example, Shun was acclaimed by the philosopher Mozi (circa late fifth century BCE) for teaching farming, pottery, and fishing to his subjects.

The demiurgi were next in power to the prætor, and therefore ſtiled by Polybius and Livy, the ſupreme magiſtrates of the Achæans. They were ten in number, choſen by the general aſſembly from among the moſt eminent men of the whole league for prudence, equity, and experience. It was their office to aſſiſt, with their advice, the prætor, who was to ſay nothing before the aſſembly, but what had been previouſly approved of by the major part of the demiurgi.