Final answer:
Lines from Nathaniel Hawthorne's The Scarlet Letter subtly associate Chillingworth with devilish characteristics, such as when Hester refers to him as 'the Black Man' and when Mistress Hibbins speaks of 'the Black Man' being near.
Step-by-step explanation:
To quote at least one line that directly associates Chillingworth with the devil, we can refer to Nathaniel Hawthorne's novel, The Scarlet Letter. In the novel, Chillingworth is often depicted with devilish attributes and is more subtly connected with the devil through various descriptions and the reactions of other characters towards him. A line that vividly illustrates this association is when Hester Prynne, the protagonist, refers to her husband (Chillingworth) as 'the Black Man' and says, 'This person had access to all the knowledge that could be derived from books, or from the lore existing only in the memories of the oldest people'.
This metaphor is Hawthorne's way of associating Chillingworth with the devil, sometimes referred to as 'the Black Man' in Puritanical folklore. Another assertion of Chillingworth's devilish nature is when Mistress Hibbins says, 'The Black Man is near thee now'. Although not as explicit as the previous quote, this line delves into the theme of sin and the devil's proximity to those who sin, aligning Chillingworth with the demonic.