Wisdom of Solomon 7:26
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; 28 for God loves nothing so much as the person who lives with wisdom.
Ambrose On the Christian Faith 1.7
The prophets say: In Your light we shall see light; and again: Wisdom is the brightness of everlasting light, and the spotless mirror of God's majesty, the image of His goodness. See what great names are declared! Brightness, because in the Son the Father's glory shines clearly: spotless mirror, because the Father is seen in the Son: image of goodness, because it is not one body seen reflected in another, but the whole power [of the Godhead] in the Son. The word image teaches us that there is no difference; expression, that He is the counterpart of the Father's form; and brightness declares His eternity. The image in truth is not that of a bodily countenance, not one made up of colors, nor modelled in wax, but simply derived from God, coming out from the Father, drawn from the fountainhead.
Notes and References
"... While the nineteen chapters comprising this work provided a well of wisdom for the Fathers to plumb (Augustine alone refers to Wisdom of Solomon more than eight hundred times), Wisdom of Solomon 7:22-8:1 in particular proved to be a favorite text for early Christian writers. In this passage wisdom is personified and characterized by twenty-one attributes, including such theologically provocative statements as “For she is a reflection of eternal light, a spotless mirror of the working of God, and an image of his goodness” and, “For she is a breath of the power of God, and a pure emanation of the glory of the Almighty”. On hundreds of occasions early Christian writers linked Wisdom 7 with such christologically significant New Testament passages as Colossians 1:15, 2 Corinthians 4:4, Hebrews 1:4, and John 14:9, 10. This christological correspondence became especially important in the fourth century with the rise of Arianism, and the Arian debate also raised pneumatological questions to which the Wisdom of Solomon could speak. For example, Ambrose linked Wisdom of Solomon 7:22-23 with 1 Corinthians 2:6-16 to explain the Holy Spirit’s role in dispensing and developing wisdom and discernment within the Church. The Donatist theologian Tyconius, a contemporary of Ambrose, made this same textual connection as well ..."
Kannengiesser, Charles Handbook of Patristic Exegesis: The Bible in Ancient Christianity (pp. 305-306) Brill, 2004