Wisdom of Solomon 7:25

23 beneficent, humane, steadfast, sure, free from anxiety, all-powerful, overseeing all, and penetrating through all spirits that are intelligent, pure, and altogether subtle. 24 For wisdom is more mobile than any motion; because of her pureness she pervades and penetrates all things. 25 For she is a breath of the power of God, and a pure emanation of the glory of the Almighty; therefore nothing defiled gains entrance into her. 26 For she is a reflection of eternal light, a spotless mirror of the working of God, and an image of his goodness. 27 Although she is but one, she can do all things, and while remaining in herself, she renews all things; in every generation she passes into holy souls and makes them friends of God, and prophets;

Date: 100-50 B.C.E.
* Dates are based on scholarly estimates

Athanasius On the Opinion of Dionysius 1:15

De Sententia Dionysii

But God is light eternal, never beginning nor ceasing. The brightness then lies before Him eternally, and is with Him without beginning and ever-begotten, shining in His Presence, being that Wisdom which said, I was that wherein he rejoiced, and daily I was glad in his presence at all times.' And again after a little he resumes the same subject with the words, 'The Father then being eternal, the Son is eternal, being Light of Light: for if there is a parent there is also a child. But if there were not a child, how and of whom can there be a parent? But there are both, and that eternally.' Then again he adds, 'God then being light, Christ is brightness; and being Spirit, for God is a Spirit — in like manner Christ is called the breath, for He is the breath of the power of God.' And again, to quote the second book, he says, 'But only the Son, who always is with the Father and is filled of Him that IS, Himself also IS from the Father.'

Date: 387-400 C.E.
* Dates are based on scholarly estimates