I. Philosophy and Religious Studies – II. Christianity – III. Practical Theology – IV. Church Law – V. Judaism – VI. Islam
I. Philosophy and Religious Studies
The word “heresy” derives from Gk αἵρεσις/haíresis (“act of choice,” “decision”). In the Hellenistic period, when a plurality of philosophical schools had developed, the word was used to express the need of budding philosophers to choose betw…