What is conscience, and do I have to follow it?

Conscience is the judgment of reason by which you recognize whether a particular act is morally right or wrong. You must follow a certain conscience, but you also have a serious duty to form it according to God's truth.

What conscience does. Deep within, the human person discovers a law given by God, calling him to love good and avoid evil (CCC 1776). Conscience applies that moral law to a concrete choice: whether to tell this lie, keep this promise, attend Sunday Mass, or help this suffering person. It bears witness before and after an action, approving what is good or accusing what is evil (CCC 1777-1778; Rom 2:15).

Why you must follow it. A person must obey the certain judgment of conscience. Deliberately doing what you sincerely judge to be gravely wrong means choosing what you believe opposes God. The Church therefore teaches that a person must not be forced to act against conscience, especially in religious matters (CCC 1782). This does not mean every sincere judgment is correct. Conscience does not create moral truth. It seeks to recognize and obey it.

How conscience can be mistaken. Ignorance, bad habits, social pressure, self-interest, and rejection of the Church's teaching can distort moral judgment. A person who knowingly neglects the truth may be responsible for an erroneous conscience. In other cases, ignorance may be invincible, meaning the person could not reasonably have overcome it, and personal guilt may be reduced or absent (CCC 1790-1793). The act itself can still be objectively wrong even when culpability is diminished.

How to form it well. Formation is lifelong. The Word of God is the chief light for conscience, received through prayer and the teaching of the Church (CCC 1783-1785). Helpful practices include:

1. Read Scripture and the Catechism.
2. Learn the Church's moral teaching rather than relying on feelings.
3. Examine your conscience honestly each day.
4. Receive the sacraments regularly.
5. Seek advice from a faithful priest when a situation is difficult.

Three basic rules always apply: never do evil so that good may result, treat others as you would have them treat you, and respect your neighbor's conscience without approving wrongdoing (CCC 1789; Rom 3:8; Mt 7:12).

Before making a serious choice, pray for light, learn what the Church teaches, consider the facts, and act according to a well-formed and certain judgment.