The quote "An eye for an eye? How Christian of you." reflects a deep irony in the expectation that individuals should adhere to Christian values, particularly in matters of justice and revenge. It suggests that those who do not share such beliefs often judge others through a lens of morality that they themselves do not embrace, highlighting a disconnect between professed values and actual behavior.

In Orson Scott Card's "Ender's Shadow," this sentiment critiques the hypocrisy of demanding that others abide by a moral code while failing to do so oneself. It challenges readers to consider the complexities of morality and the implications of holding others to standards they may not follow themselves, urging a more profound understanding of ethical behavior in society.