The term "merciful" in literature is a versatile epithet that conveys both divine benevolence and human compassion, while also serving as a tool for dramatic exclamation or criticism. In many works, it denotes the compassionate nature of God or providence, as seen in texts where divine forgiveness and protection are emphasized ([1], [2], [3]). At the same time, characters’ personal appeals—pleading “God be merciful to me, a sinner!” ([4], [5])—highlight its role in expressing vulnerability and the need for redemption. Authors also employ the phrase as an exclamation to underscore shock or dismay, such as “Merciful Heaven, what is this!” ([6], [7]). Additionally, the descriptor sometimes appears with a critical edge when applied to human actions or societal conditions ([8], [9], [10]), making "merciful" a term that encapsulates a range of emotional and moral nuances in literature.