Twenty year old Reverend Matthew Fordwick, straight out of bible school, arrives to stay and preach, at the Waltons Mountain church. While on Waltons Mountain, he is staying as a guest of the Walton family. His stay causes friction between John and Olivia though, when Olivia feels that he is making fun of Rev Fordwick and undermining what she is telling the children. John, however, tries to tell Rev Fordwick that the mountain folk are just simple folk who don't like to be shouted out and don't understand speeches that aren't spoken in plain language. John also becomes upset with him when he shouts that the children are wicked and sinful. All the time that the Reverend is staying with them, John Boy is trying to come to terms with what "sin" really is and why it is so bad. Yancy Tucker also