In this article, Dr. Munhall makes a sound argument for Sabbath observance, then identifies himself with 2 characters from Pilgrim's Progress.
"It was not by accident that Bunyan made ‘Mr. By-ends’ a relative of ‘Mr. Facing-both-ways’; for when a man acknowledges a certain obligation, and then says that circumstances will not allow him to regard it, he faces both ways, and advertises himself as a man who has ends of his own to serve."
Dr. Munhall’s only “reason” for keeping Sunday. It is this: — “I believe that the apostles kept Sunday, though I don’t know of any reason why they did so. The seventh day of the week is the Sabbath, but it isn’t convenient to keep it.”