Treatise Concerning the Trinity

Moreover Also, from the Fact that He Who Was Seen of Abraham is Called God; Which Cannot Be Understood of the Father, Whom No Man Hath Seen at Any Time; But of the Son in the Likeness of an Angel.

Behold, the same Moses tells us in another place that “God was seen of Abraham.” And yet the same Moses hears from God, that “no man can see God and live.” If God cannot be seen, how was God seen? Or if He was seen, how is it that He cannot be seen? For John also says, “No man has seen God at any time;” and the Apostle Paul, “Whom no man has seen, nor can see.” But certainly the Scripture does not lie; therefore, truly, God was seen. Whence it may be understood that it was not the Father who was seen, seeing that He never was seen; but the Son, who has both been accustomed to descend, and to be seen because He has descended. For He is the image of the invisible God, as the imperfection and frailty of the human condition was accustomed sometimes even then to see God the Father in the image of God, that is, in the Son of God. For gradually and by progression human frailty was to be strengthened by the image to that glory of being able one day to see God the Father. For the things that are great are dangerous if they are sudden. For even the sudden light of the sun after darkness, with its too great splendour, will not make manifest the light of day to unaccustomed eyes, but will rather strike them with blindness.