Schmidt, Koptisch-gnostische Schriften, p. 234 seq. These ideas may possibly be traced still further back, and perhaps even underlie St Paul's exposition in 2:15.
"Moreover, they distribute the prophets in the following manner.... Each one of these, then, glorifies his own father and God, and they maintain that Sophia, herself has also spoken many things through them regarding the first Anthropos (man), and concerning that Christ who is above, thus admonishing and reminding men of the incorruptible light, the first Anthropos, and of the descent of Christ." (Irenaeus i. 30)
Bundahishniii. 25, v. z. Cf. similar ideas in the Arabic treatise on Persian religion Ulema-i-Islam, Vullers, Fragmente über die Religion Zoroasters, p. 49, and in other later sources for Persian religion, put together in Spiegel, Eranische Altertumskunde, Bd. ii. p. 180.
