This article explains why the teaching of Nestorius on the person and nature of Christ was heresy.

This article looks at the First Council of Ephesus and how it dealt with the teaching of Nestorius. It explains the content and relevance of this council.

This article discusses the Council of Ephesus, whose purpose was address the teaching of Nestorius that came to be known as Nestorianism, a teaching that stressed the independence of the divine and human natures of Christ. The article considers the Council's setting, purpose, major characters, and the nature and results of the conflict.

What was the teaching of Nestorius or what came to be known as Nestorianism? Nestorius separated the human and divine in Jesus Christ so as to make of him two separate persons. This essay re-evaluates this position in the light of 20th century research and within the Christological controversies of that time.