Isaiah 61:3 promises a specific exchange for those who mourn: "beauty for ashes, the oil of joy for mourning, the garment of praise for the spirit of heaviness." Ashes in the ancient world were the symbol of mourning and of destroyed things — what remains after fire. The exchange God promises is not a restoration of what was: it is something new given in the place of what is gone. Abuse cannot be undone. What God offers is not a rewind but a genuine transformation of the ash into something it was not before.
Psalm 18:2 — seven metaphors of protection in one verse — was written by David after years of being hunted by Saul, the very king who was supposed to have protected him. The multiple images of safety accumulate because a single image was not enough for a man whose primary protector had become his primary threat. For abuse survivors, a single image of God's protection may not register. The accumulation is the point.
Commentary is from a charismatic Protestant perspective, drawing on KJV text and public-domain sources including Spurgeon, Andrew Murray, and Matthew Henry.