by St. Gregory the Theologian
Theotokos, not Christotokos.
If anyone does not consider holy Mary to be the Theotokos, then he does not accept the divinity of Christ.
… If anyone does not believe the holy Mary to be theTheotokos, he is without the Divinity. If anyone should say that Christ passed through the Virgin as through a channel, and was not formed in her at once in a divine and human way – divine because it was without the work of man, human because it was subject to the law of human gestation – he is equally atheistic.
… [T]he whole Adam fell by the fatal taste. Accordingly, in a human manner and beyond the human manner, in the venerable womb of the Virgin, He was shown as God and Man, uniting the two natures in one — one hidden, the other manifest to men.
