Say not then in your heart, “I was once baptized, therefore I am now a child of God.” Alas, that consequence will by no means hold. How many are the baptized gluttons and drunkards, the baptized liars and common swearers, the baptized railers and evil-speakers, the baptized whoremongers, thieves, extortioners? What think you? Are these now the children of God? Verily, I say unto you, whosoever you are, unto whom any one of the preceding characters belongs, “Ye are of your father the devil, and the works of your father ye do.” Unto you I call, in the name of Him whom you crucify afresh, and in his words to your circumcised predecessors, “Ye serpents, ye generation of vipers, how can ye escape the damnation of hell?”
— John Wesley, The Marks of the New Birth
It was one of the first things that hit me between the eyes when reading John Wesley’s works the first time: The man was not playing around. His faith was not a nice little thing he kept off to the side. It was all consuming and it was serious. He also was not out to win friends.