Leon Morris writes:
The use of the concept of propitiation witnesses to two great realities, the one, the reality and the seriousness of the divine reaction against sin, and the other, the reality and the greatness of the divine love which provided the gift which should avert the wrath from men. . .
. . . unless we give real content to the wrath of God, unless we hold that men really deserve to have God visit upon them the painful consequences of their wrongdoing, we empty God’s forgiveness of its meaning. (The Apostolic Preaching of the Cross, 211, 213)