Heidelberg Catechism – Lord’s Day 33
Q. How many parts are there to the true repentance or conversion of man?
A. Two: the dying of the old self and the birth of the new.
Q. What is the dying of the old self?
A. Sincere sorrow over our sins and more and more to hate them and to flee from them.
Q. What is the birth of the new self?
A. Complete joy in God through Christ and a strong desire to live according to the will of God in all good works.
Q. But what are good works?
A. Only those which are done out of true faith, in accordance with the Law of God, and for his glory, and not those based on our own opinion or on the traditions of men.