The Kingdom Come

We are told that the human conscience is the internal governor that helps us determine between right and wrong; it is the thing that keeps us from doing unspeakable evil, it is the thing that causes us to feel guilt and remorse. And we are told some people seem to have no conscience. They can do those unspeakable things without blinking an eye. They are pure evil.

The Bible first speaks of the human conscience like this:

"For God knows that when you eat from it [the tree of the knowledge of good and evil] your eyes will be opened, and you will be like God, knowing good and evil." -- Gen 3:5

The conscience is both the "opening of eyes" and the "knowledge of good and evil".

Animals operate more instinctively rather than with a conscience, whereas humans seem to innately know what is right and wrong without a rule or law to tell them so.