Sin has many manifestations but its essence is one. A moral being, created to worship before the throne of God, sits on the throne of his own selfhood and from that elevated position declares, "I AM." That is sin in its concentrated essence; yet because it is natural it appears to be good. "What shall we do?" (Acts 2:37) is the deep heart cry of every man who suddenly realizes that he is a usurper and sits on a stolen throne.