“If thy right eye offend thee, pluck it out”

The expression “If thy right eye offend thee, pluck it out” comes from the passage in Matthew 5:29–30 that Thomas Birdsey recites while praying in the library. In the episode recounted by Dominick Birdsey, the verse’s further instruction about the right hand turns its language of removing an offending body part into a rationale for Thomas’s self-amputation.

Biblical wording and its extension

The passage reads: “And if thy right eye offend thee, pluck it out and cast it from thee . . . and if thy right hand offend thee, cut it off and cast it from thee: For it is profitable for thee that one of thy members should perish and not that thy whole body should be cast into hell.” The expression’s reference to the eye is only the opening of a larger injunction. Its progression from eye to hand makes the bodily act Thomas carries out part of the same scriptural passage, rather than an isolated phrase.

Recitation in the library

After Theresa Fenneck reprimands Thomas by a study carrel, he resumes praying in silence and repeats the verses over and over. Dominick’s account identifies the passage and its repeated recitation as the immediate religious context for what follows. He says he knows what happened on October 12, 1990, from what Thomas told him and from newspaper stories published alongside reports about Operation Desert Shield, marking the episode as a retrospective account rather than direct narration of the library scene.

From injunction to action

Thomas takes a ceremonial Gurkha knife that his stepfather had brought back as a World War II souvenir. The knife had hung, sheathed and forgotten, on the wall of the upstairs bedroom in the house where the brothers grew up. Thomas uses his left hand to carry out steps he had rehearsed in his mind, cutting through the bone at his right wrist and amputating the hand. The verse’s abstract command thus becomes, in the episode, a physical act: Thomas treats the hand as the offending part to be removed. The expression’s significance lies in that literalization, which connects his repeated prayer to the bodily sacrifice he performs.