You know what happens when a portrait that has been painted on a panel becomes obliterated through external stains.

The artist does not throw away the panel, but the subject of the portrait has to come and sit for it again, and then the likeness is re-drawn on the same material. Even so was it with the All-holy Son of God.

He, the Image of the Father, came and dwelt in our midst, in order that He might renew mankind made after Himself, and seek out His lost sheep, even as He says in the Gospel: “I came to seek and to save that which was lost” (Luke 19:10). This also explains His saying to the Jews: “Except a man be born anew…” (John 3:3). He was not referring to a man’s natural birth from his mother, as they thought, but to the re-birth and re-creation of the soul in the Image of God.

Nor was this the only thing which only the Word could do. When the madness of idolatry and irreligion filled the world and the knowledge of God was hidden, whose part was it to teach the world about the Father? Man’s, would you say? But men cannot run everywhere over the world, nor would their words carry sufficient weight if they did, nor would they be, unaided, a match for the evil spirits. Moreover, since even the best of men were confused and blinded by evil, how could they convert the souls and minds of others? You cannot put straight in others what is warped in yourself.

Perhaps you will say, then, that creation was enough to teach men about the Father. But if that had been so, such great evils would never have occurred. Creation was there all the time, but it did not prevent men from wallowing in error. Once more, then, it was the Word of God, Who sees all that is in man and moves all things in creation, Who alone could meet the needs of the situation. It was His part and His alone, Whose ordering of the universe reveals the Father, to renew the same teaching.

But how was He to do it? By the same means as before, perhaps you will say, that is, through the works of creation. But this was proven insufficient. Men had neglected to consider the heavens before, and now they were looking in the opposite direction.

Wherefore, in all naturalness and fitness, desiring to do good to men, as Man He dwells, taking to Himself a body like the rest; and through His actions done in that body, as it were on their own level, He teaches those who would not learn by other means to know Himself, the Word of God, and through Him the Father.

He deals with them as a good teacher with his pupils, coming down to their level and using simple means. St. Paul says as much: “Because in the wisdom of God the world in its wisdom knew not God, God thought fit through the simplicity of the News proclaimed to save those who believe” (1 Corinthians 1:21). Men had turned from the contemplation of God above, and were looking for Him in the opposite direction, down among created things and things of sense. The Saviour of us all, the Word of God, in His great love took to Himself a body and moved as Man among men, meeting their senses, so to speak, halfway. He became Himself an object for the senses, so that those who were seeking God in sensible things might apprehend the Father through the works which He, the Word of God, did in the body.

Human and human-minded as men were, therefore, to whichever side they looked in the sensible world, they found themselves taught the truth. Were they awe-stricken by creation? They beheld it confessing Christ as Lord. Did their minds tend to regard men as gods? The uniqueness of the Saviour’s works marked Him, alone of men, as Son of God. Were they drawn to evil spirits? They saw them driven out by the Lord and learned that the Word of God alone was God and that the evil spirits were not gods at all. Were they inclined to hero-worship and the cult of the dead? Then the fact that the Saviour had risen from the dead showed them how false these other deities were, and that the Word of the Father is the one true Lord, the Lord even of death.

For this reason was He both born and manifested as Man, for this He died and rose, in order that, eclipsing by His works all other human deeds, He might recall men from all the paths of error to know the Father. As He says Himself, “I came to seek and to save that which was lost” (Luke 19:10).

– Athanasius of Alexandria, On the Incarnation