"Revenge" by Martina Cole delves into the complexities of retribution in human relationships, illustrating how one's actions inevitably lead to consequences. The narrative centers on characters who face the outcomes of their decisions, emphasizing that what one puts into the world will come back to them, akin to the biblical principles expressed in Galatians 6:7. This theme of accountability underscores the moral fibers of the story, compelling readers to reflect on their own choices.

The book also touches on the harsh realities of sin, aligning with the message in Romans 6:23, which highlights that sinful actions yield dire consequences. Through the lens of revenge, Cole explores how vengeance can spiral into destruction, affecting not only the perpetrator but also innocent bystanders. This profound exploration of justice and morality serves as a gripping reminder of the inevitable law of reaping what one sows.