Humans can take life, but we can’t bring the dead back to life, nor can we control what happens to someone after they die. A human’s killing another human is a destructive and irresponsible act, for once we kill someone, we can’t undo it or control the harm that results.
God, however, has greater abilities and knowledge than we do, including control over life and death. If God kills someone (i.e., children), he is able to bring them back to life or to place them in any sort of afterlife He chooses. God’s use of death is comparable to someone burning a fire in a fireplace: it can be controlled, lit or extinguished at will, and used for a purpose. In contrast, humans’ use of death is like setting fire to a dry field: the fire rages out of control, and consequently is dangerous and destructive.
Furthermore, what is death? Many believe that death is the end of both one’s body and one’s mind/personality/soul. If so, death is a destructive act for both humans and God. Yet if Christianity is true, one’s soul is not destroyed, but continues to exist in an afterlife. In this case, death is not destruction, but rather a transfer from life on earth to an afterlife of eternal joy or just punishment.