One thing that makes this topic highly important is the fact that we see the voice of conscience active before and after the cross and the redemption of man. The role the human conscience played during the Old Testament area is amazing, and even during what was known as the Dark Age. There are couple of scripture in the New Testament that speaks directly into the concept of the importance of maintaining a good conscience.

The conscience is an inner feeling or voice viewed as acting as a guide to behaving truthfully and rightly. Conscience is the moral compass God, the creator places in every human, designed to lead him or her towards the direction of what is morally right, true, and just in the sight of God. Every human being is, by default, born with a moral compass. The consciences can be greatly enhanced by regular acting on its voice and prompting and can be corrupt, shut down, or totally seared through continual rejection and disobedience as seen in the scripture. 1 Timothy 4:2