I’m translating an excellent book on dogmatic Mariology. From time to time, I’ll post sections from it. Here’s the first:
a). – Through sanctifying grace Mary is the Daughter of the Father, an adoptive daughter certainly, not a daughter according to nature. But this adoption is so full and so perfect that it closely imitates real filiation. For grace was granted to Mary at the same time as nature at the first moment of conception, and she didn’t need, like other men, to be regenerated. Much more, as grace was due to Christ in fullness, because of His hypostatic union, thus grace was due to Mary in the same way for her divine Maternity, assuming, however her free election to this Maternity. This is why the Fathers often praise her as the beloved daughter, the unique daughter, the only daughter of God. This filiation, however, is related to God the Father only by virtue of an appropriation. In reality, it is referred to the three divine Persons. This is what inspired this song of Dante Alighieri: “Virgin Mother, daughter of thy own son.”
b). – Mary is associated with the Father in the generation of the same Son. The two generations, the eternal and the temporal, end in the same person. In the two generations, the Son is begotten of the substance of the One who generates Him, of the substance of the Father according to the divinity, of the substance of the mother, according to the humanity.
And as the generation of the Word is eternal, it occurs at every moment. And so, at the same moment in which the Virgin conceived Christ in His humanity, the Father also begot Him in His divinity. The generation from the Father, however, does not end in the Son according to the human nature. And the conception of Mary does not end in the Son according to the divine nature. That’s why these two acts remain entirely distinct. The one is always present. The other is past and was very brief.
c). – Because of this same association of the Father and the Virgin in the generation of the same Son, Mary is also sometimes called the Spouse of the Father. This expression is understood very well. But it is a delicate maneuvering, and it is better to refrain from it.
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