Nobody has ever seen God; the only begotten Son who is in the bosom of the Father, He has made Him known. John 1:18.

In the same gospel,

You have never heard His voice nor seen His shape. John 1:37.

And again in the same gospel,

No one has seen the Father except Him who is with the Father, He has seen the Father. John 6:46.

[2] The Infinite itself which stands above all the heavens and above man's inmost being cannot be manifested except by means of the Divine Human, which exists solely with the Lord. Communication of the Infinite with finite beings is not possible at all from any other source. This also explains why, when Jehovah appeared to members of the Most Ancient Church and subsequently to members of the Ancient Church which existed after the Flood, and also after that to Abraham and the prophets, He was manifested to them as a human being. That it was indeed the Lord, He Himself openly teaches in John,

Abraham your father rejoiced to see My day, and saw it and was glad. Truly, truly, I say to you, Before Abraham was, I am. John 8:56, 58.

This is also taught in the Prophets, for example in Daniel who saw Him as 'a son of man', Dan 7:13.

[3] From these quotations it becomes clear that the Infinite Being (Esse), which is Jehovah, could not possibly be manifested to man except through the Human Essence, that is, through the Lord, and so has not been manifested to anyone except the Lord alone. So that He could be present with and be joined to mankind, after mankind had removed itself entirely from the Divine and had immersed itself in foul desires and so in merely bodily and earthly things, He adopted the Human Essence itself by being born. He did so in order that the Infinite Divine could be joined to man even though man was so remote. Otherwise mankind would have died the death of those for ever damned. As for all the other arcana concerning the manifestation of Jehovah in the Lord's Human, when His state was a state of humiliation, before He had fully united the Human Essence to the Divine Essence and glorified it, these will in the Lord's Divine mercy be explained later on, to the extent that they are capable of being understood.