Isaiah
Isaiah 54:4ESV·traditional attribution

“Fear not, for you will not be ashamed; be not confounded, for you will not be disgraced; for you will forget the shame of your youth, and the reproach of your widowhood you will remember no more.

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

Fear not,.... The fulfilment of these things; however unlikely and unpromising they might seem, yet God was able to perform them; and therefore way should not be given to a fearful, distrustful, and unbelieving heart: for thou shall not be ashamed; as men are, when disappointed of what they have been hoping for and expecting; but so it should not be with the church, she...

Jamieson-Fausset-Brown Reformed @jfbcommentary

(Isa 41:10, Isa 41:14). shame of thy youth--Israel's unfaithfulness as wife of Jehovah, almost from her earliest history. reproach of widowhood--Israel's punishment in her consequent dismissal from God and barrenness of spiritual children in Babylon and her present dispersion (Isa 54:1; Isa 49:21; Jer 3:24-25; Jer 31:19; Hos 2:2-5).