What is the face of God like? As his image, certainly, for as the apostle says, the image of the Father is the Son. With this image, therefore, may he shine upon us, that is, may he shine his image, the Son, upon us in order that he himself may shine upon us, for the light of the Father is the light of the Son. He who sees the Father sees also the Son, and he who sees the Son sees also the Father. Where there is no diversity between glory and glory, there glory is one and the same.
- Saint Jerome, Homily 6 on Psalm 66 (67)