In Franz Kafka's "In the Penal Colony," the theme of guilt is examined through the narrative's exploration of punishment and justice. Guilt is portrayed as a pervasive force that shapes the characters' actions and motivations. The mechanized execution device in the story represents the inescapable nature of guilt, emphasizing how it can haunt individuals and dictate their fates.

The quote "Guilt is never to be doubted" highlights the certainty of guilt in the context of the narrative. It suggests that guilt is an intrinsic part of the human experience, often leading to profound consequences. The story illustrates how the characters grapple with their own guilt, reinforcing the idea that it is a fundamental aspect of their existence, driving them toward inevitable repercussions.