“HAIL, from us, Mary, Mother of God, majestic common-treasure of the whole world, the lamp unquenchable, the crown of virginity, the staff of orthodoxy, the indissoluble temple, the dwelling of the Illimitable, Mother and Virgin, through whom He in the holy Gospels is called the ‘Blessed Who cometh in the name of the Lord.’”
~St. Cyril of Alexandria (c. 376 – 444 AD): Homilies, 4.
“IF anyone does not confess that Emmanuel is true God, and that therefore the Holy Virgin is Mother of God (Dei genetricem—Theotokon), since she bore, after the flesh, the incarnate Word of God, let him be anathema.”
~Council of Alexandria: Anathema 1 of St. Cyril. (430 AD)