A theologian “is someone who speaks of God. However, to speak of God without error, he must obtain knowledge of God. Knowledge of God is communion, union with God; it is theoria (vision) of God . . . [So] a theologian is someone in whom the deifying energy of the Triune God dwells . . . [Many] theologians with degrees from theological colleges, are well-informed about God, but few possess knowledge of God” (Met. Hierotheos. 2010. The science of spiritual medicine, pp. 128, 173, 278).