Isaiah 54:4–5 addresses the widow directly, naming the specific shame that can attach to widowhood in some communities and then speaking into it: "thy Maker is thine husband." This is one of the most direct relational claims in the Old Testament — God stepping into the relational vacancy left by death and making a specific commitment. Not as consolation prize but as primary relationship. Isaiah 54:4 says the reproach of widowhood will not be remembered — using the future tense, which implies movement toward you.
Psalm 68:5 calls God "a judge of the widows" — and in the ancient Near East, the judge was not merely a legal functionary but the advocate, the one who stood on behalf of those who had no one else to stand for them. This is not occasional sentiment. The same identification appears in Exodus 22:22, Deuteronomy 10:18, and multiple prophets. God's particular attention to the widow is a moral constant running through all of Scripture.
Commentary is from a charismatic Protestant perspective, drawing on KJV text and public-domain sources including Spurgeon, Andrew Murray, and Matthew Henry.