Isaiah 49:15 asks the most pointed question in the Old Testament about God's care: "Can a woman forget her sucking child, that she should not have compassion on the son of her womb?" The expected answer is no — a nursing mother does not forget her infant. Then God says: even if she could forget, he cannot. The most visceral form of human attachment — a mother's care for an infant she is nursing — is the comparison God chooses to describe his own attachment. An infant who has died is not forgotten by the one who made this comparison.
Romans 8:38–39 exhausts every conceivable category of separation from God's love and says none of them work: "neither death, nor life... shall be able to separate us from the love of God." Death is the first item on Paul's list. The love that reaches across infant death is the same love that Paul says nothing — absolutely nothing — can interrupt.
Commentary is from a charismatic Protestant perspective, drawing on KJV text and public-domain sources including Spurgeon, Andrew Murray, and Matthew Henry.