How can you hold on to a good conscience? Treasure your faith in Christ more than anything else and do what you know is right.
Each time you deliberately ignore your conscience, you are hardening your heart.
Over a period of time your capacity to tell right from wrong will diminish. As you walk with God, he will speak to you through your conscience, letting you know the difference between right and wrong.
Be sure to act on those inner tugs so that you do what is right-then your conscience will remain clear.
Cling to your faith in Christ, and keep your conscience clear. For some people have deliberately violated their consciences; as a result, their faith has been shipwrecked. – 1 Timothy 1:19