I have been asked to explain the Trinity. The first thing I would say is that the doctrine of the Trinity is the way the Christian church frames our understanding of God. Notice I used the word ‘frames.’ A frame is the structure but it is not the house. The wisest in the history of Christianity have always known this. The term they use with reference to this is ineffability which means that which cannot be described with words or indescribable. Words or language, the frame of the house, will only take you so far. Fools reduce their knowledge of God by thinking that language is a medium capable of bearing the infinity of the divine.
We humans created our gods when, in our primordial evolution, we ritualized the mechanism of generative mimetic scapegoating. This action, which in its repetition spawned first religion then culture, is where all human language originates. Language is bloody. This is why it is important for any discussion of language’s capacity to carry revelation to have as its epistemic base the transformation of language in blood. Linguistics, or at least all Christian discourse, can only begin with the cross of Christ and the problem of its relation to sacrifice.
Second, having read and delved into both the Patristic as well the great 20th century writers on the Trinity, I would note several crucial elements of the way we measure the frame, the doctrine of the Trinity. Anyone can claim they are trinitarian because they believe God to be three persons but the same substance. However, what lies definitionally behind the words ‘person’ and ‘substance’ create all manner problems which are adopted as solutions and warp the frame considerably. What is eventually erected is like something out of a Tim Burton movie. Trinitarian doctrines of God abound in popular Christianity, but they are cartoons.