For you, who am I?
When Peter having been asked by Jesus what he thinks Who He is, remarks that they, the first disciples, were also not too firm as yet in the knowledge of God, the Lord invites him to formulate his doubts. Peter's lengthy statements on this subject then show that the original disciples still lack a full understanding of the three-in-one nature of God: God-Father, God-Son and God-Holy Spirit.
Thereupon the Lord explains : "The Father, I, as the Son, and the Holy Spirit are, distinguishably, one and the same from eternity. The Father within Me is eternal love and as such the first cause and the actual primal substance of all things that fill all infinity.
I, as the Son, am the light and wisdom going forth from the fire of eternal love. This mighty light is God's eternal, most perfect self-awareness, His clearest self-knowledge and the eternal Word in God by which everything that exists has been made.
In order to make it possible for all this to be made, also God's mighty will is needed, and this is the Holy Spirit within God that gives the works and beings their full existence. The Holy Spirit is the great, uttered word 'Let there be!' - and what love and wisdom within God have determined, comes into existence.
And behold, all this is now within Me: Love, wisdom and all might! Thus, there is only one God, and that is I, and I have assumed a human body like yours, solely in order to reveal Myself - as is now the case - to you men of this earth whom I have created completely in My image out of the primal substance of My love.
That you, too, have the same trinity within you as I Myself, I will now clearly show you. Behold, everyone has a certain love within him and, as a result of such a love, also a will; for love is in itself a desire and a longing, and that is wherein the will lies. This applies also to all the plants and animals and, to a point, also to the other matter.
Even the most vulgar and unrefined man possesses love and will; but what does he achieve with it? He is only concerned with satisfying his lowest and most material needs which, going forth from his crude love, instinctively transmit to his will from which his intellect receives nothing but the haziest notion. Look at such people's actions! Aren't they far worse than those of animals whose love and desires are guided by a higher influence?
It is quite different, however, with the love and its will of those people whose intellect has become enlightened; for with its light it then permeates man's love and its will and thereby the whole person. Only then does love provide the pure means, the light or wisdom sets them in order and the will puts them into practice. Since man, as God's image, possesses such an ability, too, does he then consist of three people, or is he just one person?"
Say all, and in particular the first disciples: 'Thank You, O Lord, for having explained this so very clearly, for You do not always speak and teach like this. Only now do we fully understand how it is with the oneness of God, and so You are indeed fully God as we have already suspected on various occasions'." [GGJ 6/229 and 230]