Shall all churches be redeemed to makeup the Bride of Christ? Answer to that shall be found in the Book of Revelation.
Merely because God did not spare natural branches it does not mean God cast aside the tree as well. Because of their unbelief they were broken off. If God rejected those who did not abide in him how much more his anger shall be kindled if the gentiles (branches of the wild olive) do note abide under his goodness? (Ro.11:24) In the end times those who are kept from the Great Tribulation shall be a remnant from the House of Israel and those who remained under the grace. These two shall constitute the male child.
The illustration is taken from the Book of Revelation. In Chapter 12 Apostle John describes the vision thus: “And there appeared a great wonder in heaven- a woman clothed with the sun, and the moon under her feet, and upon her head a crown of twelve stars. And she being with child, cried, travailing in birth, and pained to be delivered.” In the illustration I have also included a red dragon who having cast one third of the stars to the earth is posing a real threat to the woman in labor.
What does the woman represent?
She is the symbol representing the House of Israel and the Church. Promise of God shall never fail but election demands both meet certain criteria. When male child is lifted to safety the woman is no longer a wonder in heaven but is the left-behind church and about to undergo the Great Tribulation.
The events described in the vision are under different time frames, scenes switching from heaven to the earth. In the illustration we also see God’s providence for the left out church in times of her greatest trial. The angels shall lead her to safe place were she is to be nourished for a time.