The cross is the point where God and His children, even the best of them, clash. At Calvary we see the rocky coast-line of men's thoughts and feelings against which the incoming tide of God's mind and heart broke; and we hear the moaning of the resisted waves. The crucifixion is the exposure of the motives and impulses, the aspirations and traditions, of human society. Its ungodlikeness is made plain. We get our definition of sin from Calvary; sin is any unlikeness to the Spirit of Christ, revealed supremely in that act of self-sacrifice. The lifeless form of the Son of God on the tree is the striking evidence of the antagonism between the children of men and their Father. Jesus completely represented Him, and this broken body on the gibbet was the inevitable result. Golgotha convinces us of the ruinous forces that live in and dominate our world; it faces us with the suicidal elements in men's spirits that drive them to murder the Christlike in themselves; it tears the veil from each hostile thought and feeling that enacts this tragedy and exposes the God-murdering character of our sin. Sin is deicidal. When that Life of light is extinguished, we find a world about us and within us so dark that its darkness can be felt. The fateful reality of the battle between love and selfishness, knowledge and ignorance, between God and whatever thwarts His purpose, is made plain to us in that pierced and blood-stained Figure on the cross. In the sense of being the victim of the ungodlike forces in human life, Jesus bore sin in His own body on the tree.