"Sing, Barren Woman"

Isaiah 54:1

"Sing, barren woman, who has never had a baby.

Fill the air with song, you who've never experienced childbirth!

You're ending up with far more children

than all those childbearing women." GOD says so!

A prophecy of return from exile and the work of the suffering servant.  Certainly it applies to the coming New Covenant when through the seed of Israel will come Messiah who is the Suffering Servant.  This is certainly the way Paul applies this passage:

Galatians 4:27-28

For it is written,

“ Rejoice, barren woman who does not bear;

Break forth and shout, you who are not in labor;

For more numerous are the children of the desolate

Than of the one who has A husband.”

28 And you brethren, like Isaac, are children of promise.

The coming of the Suffering Servant would cause the barren woman (Israel) to rejoice for through Messiah they would end up with untold numbers of children of every tribe and tongue and nation.