We cannot understand the depth of the Christian doctrine of sin if we give it only a moral connotation. To break the basic laws of justice and decency is sin indeed. Man’s freedom to honor principles is the moral dimension in his nature, and sin often appears as lawlessness. But sin has its root in something which is more than the will to break the law. The core of sin is our making ourselves the center of life, rather than accepting the holy God as the center. Lack of trust, self-love, pride, these are three ways in which Christians have expressed the real meaning of sin. But what sin does is to make the struggle with evil meaningless. When we refuse to hold our freedom in trust and reverence for God’s will, there is nothing which can make the risk of life worth the pain of it.

…D. D. Williams (1910-1973), Interpreting Theology 1918-1952 [1953]