- 111a For we do not say that the nature of the Word was changed and made flesh, nor yet that it was changed into the whole man (composed) of soul and body but rather (we say) that the Word, in an ineffable and inconceivable manner, having hypostatically united to Himself flesh animated by a rational soul, became Man and was called the Son of Man, not according to the will alone or by the assumption of a person alone, and that the different natures were brought together in a real union, but that out of both in one Christ and Son, not because the distinction of natures was destroyed by the union, but rather because the divine nature and the human nature formed one Lord and Christ and Son for us, through a marvelous and mystical concurrence in unity. . . . For it was no ordinary man who was first born of the Holy Virgin and upon whom the Word afterwards descended; but being united from the womb itself He is said to have undergone flesh birth, claiming as His own the birth of His own flesh. Thus [the holy Fathers] did not hesitate to speak of the holy Virgin as the Theotokos (Mother of God). [Denzinger paragraph 111a]
Jesus, St. John the Baptist and Mary the Mother of God
113 Canon. 1. If anyone does not confess that God is truly Emmanuel, and that on this account the Holy Virgin is the Mother of God (for according to the flesh she gave birth to the Word of God become flesh by birth), let him be anathema (condemned, i.e. excommunicated).
114 Can. 2. If anyone does not confess that the Word of God the Father was united to a body by hypostasis [union in a single Person] and that one is Christ with his own body, the same one evidently both God and man, let him be anathema.
115 Can. 3. If anyone in the one Christ divides the subsistences [divine and human natures] after the union, connecting them by a junction only according to worth, that is to say absolute sway or power, and not rather by a joining according to physical union [union in the one Christ], let him be anathema.
116 Can. 4. If anyone portions out to two persons, that is to say subsistences, the words in the Gospels and the apostolic writings, whether said about Christ by the saints, or by Him concerning Himself, and attributes some as it to a man specially understood beside the Word of God, others as befitting God alone, to the Word of God the Father, let him be anathema.
117 Can. 5. If anyone ventures to say that Christ is a man inspired by God, and not rather that He is truly God, as a son by nature, as the Word was made flesh and has shared similarly with us in blood and flesh, let him be anathema.
118 Can. 6. If anyone ventures to say that God or the Lord is the Word of Christ from God the Father and does not rather confess the same as at once both God and man, since the Word was made flesh according to the Scriptures, let him be anathema.
119 Can. 7. If anyone says that Jesus as man was assisted by the Word of God, and that the glory of the Only-begotten was applied as to another existing beside Him, let him be anathema ( "either set apart, banished or denounced").
(Four Homilies 1 [A.D. 262]). Saint Gregory the Wonderworker