Who then is God? He is Father, Son and Holy Spirit, one God. Do not look for any further answers concerning God. Those who want to understand the unfathomable depths of God must first consider the world of nature. Knowledge of the Trinity is rightly compared with the depth of the sea. Wisdom asks: Who will find out what is so very deep? As the depths of the sea are invisible to human sight, so the Godhead of the Trinity is found to be beyond the grasp of human understanding. If any one, I say, wants to know what he should believe he must not imagine that he understands better through speech than through belief; the knowledge of God that he seeks will be all the further off than it was before. Seek then the highest wisdom, not by arguments in words but by the perfection of your life, not by speech but by the faith that comes from simplicity of heart.