Answer: Three. First, the greatness of my sin and wretchedness. Second, how I am freed from all my sins and their wretched consequences. Third, what gratitude I owe to God for such redemption.
— Dr. Zacharias Ursinus
... best known as the principal author and interpreter of the Heidelberg Catechism which is a Protestant confessional document taking the form of a series of questions and answers, for use in teaching Reformed Christian doctrine.