is not actually willing to sin. His wife,
who is "aptly named" Faith, relatively obviously represents both all that
is good and pure about human relationships, and also represents the
religion or faith into which he was born. So he must briefly leave his
religion in order to entertain thoughts of evil, which is why he says to
the devil that "Faith kept me back awhile." Likewise, it is thoughts of his
faith that make him determined not to go far with the devil. He speaks of
...