They give the piece a dreary, melancholy tone.
The imagery of these quotes are very dark and gloomy. They change the author's tone into a more dreary, melancholy tone.
In my opinion, these parts show that the central character (Christian) is devoutly religious and God-fearing: <span>Because I fear that this burden is upon my back will sink me lower than the grave, and I shall fall into Tophet [Isa. 30:33] And, Sir, if I be not fit to go to prison, I am not fit, I am sure, to go to judgement, and from thence to execution; and the thoughts of these things make me cry. Christian has experienced first-hand that life is cruel and difficult. It would be far too easy to give up on life and embrace death, but he also knows that there is one thing worse than death, and that is hell. If he were to give up, he would end up in hell. So, he is willing to go down the path of salvation, with the help of Evangelist. This part also shows it: </span><span>Whither must I fly? It means that he is humble enough to obediently follow the path that Evangelist shows him. "The Pilgrim's Progress" shows us a central character who is weak and pliable just like most of people. He often errs and goes astray, and it's his humility and commitment that give him enough courage to follow Evangelist's guidance.</span>
