Isaiah
Isaiah 54:1BSB·traditional attribution

“Shout for joy, O barren woman, who bears no children; break forth in song and cry aloud, you who have never travailed; because more are the children of the desolate woman than of her who has a husband,” says the LORD.

Matthew Henry Presbyterian @wholebiblehenry

If we apply this to the state of the Jews after their return out of captivity, it is a prophecy of the increase of their nation after they were settled in their own land. Jerusalem had been in the condition of a wife written childless, or a desolate solitary widow; but now it is promised that the city should be replenished and the country peopled...

Commenting on Isaiah 54:1-5

John Gill Reformed Baptist @doctorgill

Sing, O barren, thou that didst not bear,.... The Targum interprets this of Jerusalem, paraphrasing the words thus, "sing praise, O Jerusalem, which was as a barren woman that bears not;'' and so the apostle applies the words of the text to the Jerusalem above, the mother of us all, the then present Gospel church, Gal 4:26, which, at the first setting of it up...

Geneva Bible Notes Reformed @genevanotes

Sing, O barren, thou [that] didst not bear; break forth into singing, and cry aloud, thou [that] didst not travail with child: for more [are] the children of the desolate than the children of the married wife, saith the LORD.