The answer to the problem of evil does not lie in trying to establish its point of origin, for that is simply not revealed to us. Rather, in the moment of the cross, it becomes clear that evil is utterly subverted for good. . . . If God can take the greatest of evils and turn them for the greatest of goods, then how much more can he take the lesser evils which litter human history, from individual tragedies to international disasters, and turn them to his good purpose as well.
Thanks to the cross, evil is now utterly subverted in the cause of good. If the cross of Christ, the most evil act in human history, can be in line with God’s will and be the source of the decisive defeat of the very evil that caused it, then any other evil can also be subverted to the cause of good.
- Carl Trueman, "Luther’s Theology of the Cross"
[Of First Importance]