You have to understand the language of the Old Testament....
When you look at the Old Testament passages, Israel, Zion or Jerusalem is often represented as a woman....
I am giving you this one verse to study:
1 Sing, barren woman,
you who never bore a child;
burst into song, shout for joy,
you who were never in labor;
because more are the children of the desolate woman
than of her who has a husband,
says the Lord.
2 Enlarge the place of your tent,
stretch your tent curtains wide,
do not hold back;
lengthen your cords,
strengthen your stakes.
3 For you will spread out to the right and to the left;
your descendants will dispossess nations
and settle in their desolate cities.
4 Do not be afraid; you will not be put to shame.
Do not fear disgrace; you will not be humiliated.
You will forget the shame of your youth
and remember no more the reproach of your widowhood.
5 For your Maker is your husband
the Lord Almighty is his name
the Holy One of Israel is your Redeemer;
he is called the God of all the earth.
6 The Lord will call you back
as if you were a wife deserted and distressed in spirit
a wife who married young,
only to be rejected, says your God.
The woman in Revelation Chapter 12 is the Nation of Israel.
I appreciate your diligence in this matter, and the strength of your belief.
I look on Isaiah as both a Prophet and Evangelist. In the verses you just quoted, I can see Jesus reading this to his mother.
Isaiah lived in a time of Assyrian occupation, and was looking for the restoration to the uniting of the Kingdom(nation) of Israel. This HAPPENED.
Jesus is our Salvation, not the nation of Israel. He came out of Israel. Israel was a light, as one uses a light at night seeking out the Bridegroom. Jesus was and is our Bridegroom and Salvation. Keep your eyes on Him.