Apocalypse 12
The vision of the woman clothed with the sun and of the great dragon her persecutor.
1.1 C A woman — The church of God. It may also, by allusion, be applied to our blessed Lady. The church is clothed with the sun, that is, with Christ: she hath the moon, that is, the changeable things of the world, under her feet: and the twelve stars with which she is crowned, are the twelve apostles: she is in labour and pain, whilst she brings forth her children, and Christ in them, in the midst of afflictions and persecutions.
1.1 The 'woman clothed with the sun' is interpreted as: (1) the Church, (2) Israel, and (3) Mary, the Mother of the Messiah.
1.2 These interpretations are not mutually exclusive but represent layers of meaning in apocalyptic symbolism.
1.3 The Marian interpretation sees Mary as the Queen of Heaven, crowned with twelve stars representing the twelve tribes/apostles.
1.4 Pius XII, Munificentissimus Deus (1950): This passage supports the doctrine of Mary's Assumption and heavenly glorification.
2.1 The woman's travail represents either the Church's birth-pangs in bringing forth Christ's members, or Mary's spiritual anguish at the Cross.
2.2 Traditional teaching holds that Mary's physical childbirth was painless, being free from the curse of Genesis 3:16.
5.1 'A man child, who was to rule all nations with an iron rod'—this is clearly Christ, the Messiah (cf. Ps 2:9).
5.2 The woman who bears Him is therefore, in one sense, Mary—confirming the Marian interpretation of the vision.
17.1 'The rest of her seed'—if the woman is Mary, her other offspring are Christians, her spiritual children.
17.2 Christ gives Mary as mother to all disciples (John 19:27), making all believers her children.