Nestorianism is a Christological heresy which originated in the
Church in the 5th century out of an attempt to rationally
explain and understand the incarnation of the divine Logos, the
Second Person of the Holy Trinity as the man Jesus Christ.
Nestorianism teaches that the human and divine essences of
Christ are separate and that there are two persons, the man
Jesus Christ and the divine Logos, which dwelt in the man. Thus,
Nestorians reject such terminology as "God suffered" or "God was
crucified", because they believe that the man Jesus Christ
suffered. Likewise, they reject the term Theotokos (Giver of
birth to God) for the Virgin Mary, using instead the term
Christotokos (giver of birth to Christ) or Anthropotokos (giver
of birth to a man). Origins of Nestorianism Nestorian ideas were
first developed in the writings of Diodore of Tarsus against the
heresy of Apollinarius. In refuting Apollinarianism, Diodore
wrote that at the time of the Incarnation and after the
Incarnation, the Divine and human natures