Incongruence is the term used to describe a situation in which an individual provides inaccurate and contradictory information with one another. We can see this in the passage above, when the narrator states that a single person is a good man and a better exhorter, because these two characteristics are extremely contradictory.
The excerpt shown above belongs to "The Celebrated Jumping Frog of Calaveras County" story written by Mark Twain, where we are introduced to Jim Smiley who believed that his frog was the biggest jumper in relation to all the frogs in the city.