John Chrysostom, on Gal 4:27

“For it is written: Rejoice, thou barren, that bearest not: break forth and cry, thou that travailest not: for many are the children of the desolate, more than of her that hath a husband.”

“Who is this who before was "barren," and "desolate?" Clearly it is the Church of the Gentiles, that was before deprived of the knowledge of God? Who, "she which hath the husband?" plainly the Synagogue. Yet the barren woman surpassed her in the number of her children, for the other embraces one nation, but the children of the Church have filled the country of the Greeks and of the Barbarians, the earth and sea, the whole habitable world. Observe how Sarah by acts, and the Prophet by words, have described the events about to befal us. Observe too, that he whom Isaiah called barren, Paul hath proved to have many children, which also happened typically in the case of Sarah. For she too, although barren, became the mother of a numerous progeny. This however does not suffice Paul, but he carefully follows out the mode whereby the barren woman became a mother, that in this particular likewise the type might harmonize with the truth. ...”

Imported from an open dataset — not yet checked against the printed edition.