The Mother of God
Since apostolic time, Catholics have believed and the Church has taught that the Blessed Virgin Mary is truly the Mother of God or, in ancient Greek, Theotokos which means “God-bearer.” This honorable designation means Mary is the mother of the eternal Son of God made man by having conceived and given birth to the Divine Logos in his sacred humanity (Jn 1:1,14). Surely, Mary did not create the divine person of Jesus who existed with the Father for all eternity, but she did provide all the genetic material that was needed to allow God to become a man by the power of the Holy Spirit. He is the “seed” or offspring of the woman who God put at enmity with the serpent (Gen 3:15).
Isaiah’s prophecy was fulfilled at the Annunciation once Mary gave her joyful consent in response to the good news that was brought to her by the angel Gabriel: “Behold, the virgin shall conceive, and bear a son whose name shall be Emmanuel” (7:14). The Hebrew name means “God with us” (cf. Mt 1:23). Mary’s cousin Elizabeth deferentially acknowledged the singular blessing conferred on her kinswoman when she asked her, “Whence is this to me, that the mother of my Lord (Κυρίου or Kyrios) should come to me?” (Lk 1:43). The divine title Adonai ( אֲדֹנָי, lit. “My Lords”) is the plural form of the Hebrew word adon (“Lord”) along with the first-person singular pronoun enclitic. As with Elohim, Adonai’s grammatical form is usually explained as a plural of majesty. In the Hebrew Bible, it is nearly always used to refer to God about 450 times. The divine name YHWH was increasingly regarded as too sacred to be uttered; it was thus replaced vocally in the synagogue ritual by the Hebrew word Adonai (“My Lord”), which was translated as Kyrios (“Lord”) in the Septuagint, the Greek version of the Hebrew Scriptures. Hence, the Blessed Virgin Mary is the mother of our Lord Jesus Christ, who is God Himself in His divine person and as such the Hebrew God of Abraham, Isaac, and Jacob made man.
Early Sacred Tradition