...the Divine Nature cannot be apprehended by human reason, and ... we cannot even represent to ourselves all its greatness.
(Oration 28:11)
What God is in nature and essence, no man ever yet has discovered or can discover. Whether it will ever be discovered is a question which he who will may examine and decide. In my opinion it will be discovered when that within us which is godlike and divine, I mean our mind and reason, shall have mingled with its Like, and the image shall have ascended to the Archetype, of which it has now the desire. And this I think is the solution of that vexed problem as to "We shall know even as we are known" (1 Cor. 13:12). But in our present life all that comes to us is but a little effluence, and as it were a small effulgence from a great Light. So that if anyone has known God..., we are to understand such an one to have possessed a degree of knowledge which gave him the appearance of being more fully enlightened than another who did not enjoy the same degree of illumination; and this relative superiority is spoken of as if it were absolute knowledge, not because it is really such, but by comparison with the power of that other.
(Oration 28:17)
I have very carefully considered this matter in my own mind, and have looked at it in every point of view, in order to find some illustration of this most important subject, but I have been unable to discover any thing on earth with which to compare the nature of the Godhead... {After considering and rejecting a number of analogies from the phenomenal world} it seems best to me to let the images and the shadows go, as being deceitful and very far short of the truth; and clinging myself to the more reverent conception, and resting upon few words, using the guidance of the Holy Ghost, keeping to the end as my genuine comrade and companion the enlightenment which I have received from Him, and passing through this world to persuade all others also to the best of my power to worship Father, Son, and Holy Ghost, the One Godhead and Power. To Him belongs all glory and honour and might for ever and ever. Amen.
(Oration 32:31,33)