I think that the choice of the Cathedral as the meeting place for Jerry and Miss Pross to continue their escape at the end of A Tale of Two Cities is part of a motif that connects goodness with Christianity. The location of the Cathedral symbolizes the essential goodness of their cause as well as Jerry's recent decision to leave the his life of crime and give up grave robbing. In an opposite manner, Madame Defarge, who Miss Pross meets up with back at the Manette's apartment symbolizes everything evil about France. As such you might say that Miss Pross and England are symbolized by their meeting in God's house, while Madame Defarge symbolizes everything that God is against. In a similar manner, Sydney Carton also takes on the role of goodness and associates it with God by his recitation of John 11:24-25, "I am the resurrection and the life...." Again Dickens is using things of Christianity to symbolize goodness.