It is possible that the entire project of visibly representing the Trinity is inherently and hopelessly problematic, given that visual forms are generally mutually exclusive: three forms cannot occupy the very same space without displacing or deforming one another. For this reason, visual conceptions of the Trinity are able to emphasise the three-ness of God but have great difficulty emphasising the three-in-oneness of God. Jeremy Begbie has argued that perhaps musical space is more conducive to artistically understanding Trinitarian doctrine—or is at least a helpful supplement—because in sonic space three sounds can remain wholly distinct and yet entirely mutually indwell one another in a single sound, as in the case of a musical chord.

Indeed. And if that doesn’t convince you, I guess there’s always the second commandment.