The context?
Hmmmm . . . that is the pot calling the kettle black.
Chapter and verse were not added to Scripture until the Middle Ages. Every Book of the bible was written as one long, continuous letter.
That being said - Rev. 12:1 is merely a continuation of Rev. 11:19, which states:
Then God's temple in heaven was opened, and within his temple was seen the ark of his covenant. And there came flashes of lightning, rumblings, peals of thunder, an earthquake and a severe hailstorm.
Rev. 12:1 states:
A great sign appeared in heaven: a woman clothed with the sun, with the moon under her feet and a crown of twelve stars on her head.
This is what is known as a polyvalent symbol, in which multiple meanings are gleaned from a single symbol.
The 12 stars represented Israel - but in the Church, they represent the 12 Apostles.
The woman fled to the desert for a time - and so did Mary (to Egypt).
The Woman gives birth to Jesus - and so did Mary, quite literally.
The Woman is the only person in Revelation shown as having a physical body - from heat to toe.
This is an indication of the bodily Assumption of Mary.
The Ark of the Covenant carried symbols of God's power in it.
Mary is the Ark of the NEW Covenant who actually carried GOD within her womb.
The comparison of Scriptural type and fulfillment is unmistakable:
OT - The Word was written by God on Tablets of Stone (Ex. 25:10) placed inside the Ark (Deut. 10:1)
NT - The Word of God became Flesh (John 1) conceived inside Mary (Luke 2:38) Mary carried the Word of God.
OT - "Who am I that the Ark of my Lord should come to me?" (2 Sam. 6:9)
NT - "Who am I that the mother of my Lord should come to me?" (Luke 1:43)
OT - The When the Ark carrying the Word of God returned “David was leaping and dancing before the Lord” (2 Sam. 6:14)
NT - When Mary came into Elizabeth's presence carrying the word of God, the baby “leaped for joy” in Elizabeth's womb (Luke 2:38)
OT - The Ark carrying the Word of God is brought to the house of Obed-Edom for 3 months, where it was a blessing. (2 Sam. 6:11)
NT - Mary (the new Ark) carrying the Word of God goes to Elizabeth's house for 3 months, where she is a blessing (Luke 1:56)
OT - The Ark is captured (1 Sam 4:11) and brought to a foreign land and later returns (1 Sam 6:13)
NT - Mary (the new Ark) is exiled to a foreign land (Egypt) and later returns (Matt. 2:14)
OT - The On the Day of the Dedication of the Temple which Solomon built, there were 120 priests present (2 Chron. 5:11). The Ark of the covenant was carried into the Temple (2 Chron. 5:7) and fire came down from Heaven to consume the burnt offering (2 Chron. 7:7).
NT - The On the Day of Pentecost, there were 120 disciples of Jesus present in the Upper Room (Acts 1:15). Mar, the Mother of Jesus and the Ark of the NEW Covenant was also present while the Holy Spirit came down as tongues of fire (Acts 2:3).