Isaiah 54:6

The seasonable succour and relief which God sent to his captives in Babylon, when they had a discharge from their bondage there, are here foretold, as a type and figure of all those consolations of God which are treasured up for the church in general and all believers in particular, in the covenant of grace. I. Look back to former troubles, and in comparison with them God's favours to his people appear very comfortable, Isa 54:6-8. Observe, 1. How sorrowful the church's condition had been. She had been as a woman forsaken, whose husband was dead, or had fallen out with her, though she was a wife of youth, upon which account she is grieved in spirit, takes it very ill, frets, and grows melancholy upon it; or she had been as one refused and rejected, and therefore full of discontent. Note, Even those that are espoused to God may yet seem to be refused and forsaken, and may be grieved in spirit under the apprehensions of being so. Those that shall never be forsaken and left in despair may yet for a time be perplexed and in distress. The similitude is explained (Isa 54:7, Isa 54:8): For a small moment have I forsaken thee. In a little wrath I hid my face from thee. When God continues his people long in trouble he seems to forsake them; so their enemies construe it (Psa 71:11); so they themselves misinterpret it, Isa 49:14.

— Matthew Henry's Concise Commentary (public domain)

called--that is, recalled: the prophetic past for the future. forsaken--that had been forsaken. when thou--or, "when she was rejected"; one who had been a wife of youth (Eze 16:8, Eze 16:22, Eze 16:60; Jer 2:2) at the time when (thou, or) she was rejected for infidelity [MAURER]. "A wife of youth but afterwards rejected" [LOWTH].

— Jamieson-Fausset-Brown Commentary (public domain)