How is the father/son relation pictured?

Stanley, John's father, is a Calvinist preacher. He is described as a stern and controlling father, who continues to refer to his adult son as "the boy". John is afraid of his father, and he is terrified of would do if he found out about Wamuhu's pregnancy. Over the course of the story, however, the narrator suggests that Stanley is so harsh toward John because he feels guilty that John was conceived out of wedlock.