From the Discourses against the Arians by Saint Athanasius, bishop
We know the Father through creative and incarnate Wisdom

The only-begotten Son, the Wisdom of God, created the entire universe. Scripture says: You have made all things by your wisdom, and the earth is full of your creatures. Yet simply to be was not enough: God also wanted his creatures to be good. That is why he was pleased that his own wisdom should descend to their level and impress upon each of them singly and upon all of them together a certain resemblance to their Model. It would then be manifest that God’s creatures shared in his wisdom and that his works were worthy of him.

For as the word we speak is an image of the Word who is God’s Son, so also is the wisdom implanted in us an image of the Wisdom who is God’s Son. It gives us the ability to know and understand and so makes us capable of receiving him who is all-creative Wisdom, through whom we can come to know the Father. Whoever has the Son has the Father also, Scripture says, and Whoever receives me receives the One who sent me. And so, since this image of the Wisdom of God has been produced in us and in all creatures, the true and creative Wisdom rightly takes to himself what applies to his image and says: The Lord created me in his works.

But because the world was not wise enough to recognize God in his wisdom, as we have explained it, God determined to save those who believe by means of the “foolish” message that we preach. Not wishing to be known any longer, as in former times, through the mere image and shadow of his wisdom existing in creatures, he caused the true Wisdom himself to take flesh, to become man, and to suffer death on the cross so that all who believed in him might be saved by faith.

Yet this was the same Wisdom of God who had in the beginning revealed himself and his Father through himself by means of his image in creatures (which is why Wisdom to is said to be created). Later, as John declares, that Wisdom, who is also the Word, became flesh, and after destroying the power of death and saving our race, he revealed himself and his Father through himself with greater clarity. Grant, he prayed, that they may know you, the only true God, and Jesus Christ whom you have sent.

So now the whole earth is filled with the knowledge of God, since it is one and the same thing to know the Father through the Son, and to know the Son who comes from the Father. The Father rejoices in his Son, and with the same joy the Son delights in the Father and says: I was his joy; every day I took delight in his presence.