The Blessed Virgin Mary is the Mother of God, born without Original Sin, perpetually a virgin, and was assumed into Heaven at the consummation of her earthly life. The Catholic Church treats the Blessed Virgin Mary with highest reverence, honor, and veneration, the Queen of all the angels and saints. Throughout her history, the Church has defined four dogmas: Mary is the Mother of God the Θεοτόκος, Mary is a Perpetual Virgin, a Virgin before, during, and after she gave birth to Christ, Mary was Immaculately Conceived, meaning she was born without Original Sin, and Mary was assumed into Heaven at the consummation of her earthly life, meaning God brought her body and her soul into Heaven when she died: she did not have to wait until the end of time for her body to be assumed into Heaven. Mary is our mother, and like any good mother, she wants the best for us – to be saved. She takes us by the hand and leads us home to her Son. If we want to know Jesus Christ, we ought to get to know her mother.
Mary is the Mother of God
The Church teaches that Mary is the Mother of God. This can sound as though the Church would be saying that Mary is God, because people give birth to people, dogs to dogs, oak trees to oak trees, etc. But God is uncreated. There is no source to any person of the Blessed Trinity. God is coequal and coeternal, meaning all three Persons of the trinity are equal, and that God has always and will always exist, outside of time and creation. However, when the Second Person of the Blessed Trinity entered time through the womb of Mary, we can rightfully say that Mary is the Mother of the Second Person of the Trinity, Jesus Christ. Even though He chose to enter her womb (with her consent in fact), Jesus Christ, by the very fact that Mary conceived Him, became at that point the Son of Mary. We can then say that Mary is the Mother of God even though she is not the mother of the Trinity. The Father and the Holy Spirit were never incarnate. A common Protestant objection could be that if Mary is the Mother of Jesus, then she is the source of Christ’s Divinity, making her somehow above Christ. But here we can think of human marriage. A mother and father give birth to a person, who is a body-soul composite. However, the child’s soul does not come from the parents, but from God. However, the child, at the moment of conception, has a body and a soul. At 3 months, that person has a body and a soul. Same at 6 months. Same at birth. A mother gives birth to a person, not a body or a nature, even though the child’s soul does not come from her. Therefore, to deny that Mary is the Mother of God is to deny that Christ fully became man.