What makes Dimmesdale a good minister in "The Scarlet Letter"? what ways did dimmesdale torture himself?

Ironically,
because he feels like such a sinner, Dimesdale's sermons become more fiery and effective. In
addition, people believe he is holy because many times on the pulpit he confesses that is the
worst of sinners. What he always plans on doing is going on and confessing he is the father of.
But, he never does. So people assume that if such a good man thinks he is an awful sinner, he
must...