For what does it say? “And a great sign appeared in heaven: a woman clothed with the sun; under her feet the moon.” As was said, this refers to the Mother of the Savior. The vision depicts Her in heaven, not on earth, because She is pure in soul and body, equal to the angels, and a dweller in heaven. She contained God and gave flesh to Him Who rests in heaven, for He said, “Heaven is My throne” (Isa 66:1; Acts 7:49).
She has nothing in common with the earth and its evil, but possesses all majesty and every heavenly glory, although She is of our human nature and essence. For the Virgin is consubstantial with us. Therefore let the corrupt teaching of Eutyches, which babbles that the Virgin differs from us in essence, be cast out beyond the faith of the divine bridal chambers, together with his other dogmas.
What is meant when it is said that She is clothed with the sun and has the moon under Her feet? The divine prophet Habakkuk, prophesying of the Lord, says: “The sun was exalted, and the moon stood still in its order in the light” (Hab 3:11). He calls our Savior Christ the Sun of righteousness (Mal 4:2), or at least the preaching of the Gospel. This means that when the preaching of the Gospel was exalted and glorified, the moon, that is, the law of Moses, stood still and received no increase.
For after the manifestation of Christ, proselytes from the Gentiles were no longer received as before. Rather, there was diminution and disappearance. Therefore you should also observe here that the Holy Virgin is covered by the intelligible Sun. For so the prophet names the Lord when he says of Israel: “Fire fell upon them, and they did not see the sun” (Ps 57:9).
The moon, that is, the sacred rite performed according to the law, and the commonwealth governed by the law, lies under Her feet, as though it had sunk down and become much less than itself. It has been conquered by the light of the Gospel.
He rightly called what belongs to the law the moon, because it is illumined by the sun, that is, by Christ, just as the sensible moon is illumined by the sensible sun. Regarding what has been said, it would be more fitting to say not that the woman was clothed with the sun, but that she clothed the sun which she had in her womb.
Yet in order to make clear from the vision that the Lord, Who was in the womb, was the covering of His Mother and of every creature. The apostle said that “He clothed the woman.” The angel of God said the same thing to the Holy Virgin: “The Holy Spirit will come upon Thee, and the power of the Most High will overshadow Thee” (Lk 1:35). For to overshadow, to cover, and to clothe are expressions identical in meaning.