But those who are to receive teaching are the living, who are inscribed in the book of the living. It is about themselves that they receive instruction, receiving it from the Father, turning again to him. Since the perfection of the totality is in the Father, it is necessary for the totality to ascend to him. Then, if one has knowledge, he receives what are his own, and draws them to himself. For he who is ignorant is in need, and what he lacks is great, since he lacks that which will make him perfect. Since the perfection of the totality is in the Father, and it is necessary for the totality to ascend to him, and for each one to receive what are his own, he enrolled them in advance, having prepared them to give to those who came forth from him.
[...]This is the knowledge of the living book, which he revealed to the aeons at the end as his letters, revealing how they are not vowels nor are they consonants, so that one might read them and think of something foolish, but (rather that) they are letters of the truth, which they alone speak who know them. Each letter is a complete
, like a complete book, since they are letters written by the Unity, the Father having written them for the aeons, in order that by means of his letters they should know the Father.
The Gospel of Truth