The world we are living in today is still entrenched in the midst of meritocracy. While it may seem somewhat out of place in a society where the values of meritocracy reign supreme, the author seeks to reinterpret Jesus’ “parable of the vineyard workers” from the perspective of Christian philosophy. The ultimate aim of doing so is to reveal the dangers posed by meritocracy or the all-encompassing belief in merit, which can destroy our own lives, sever relationships with our neighbors, and ultimately even annihilate human nature itself. Furthermore, in the socio-cultural landscape of Korea, which has embraced this meritocratic ideology, the author aims to define the identity of Christians and present guidelines for the cultivation of Christian virtues, exploring what constitutes a mature Christian life amidst the prevailing meritocratic ethos. To achieve this, the author first reviews various interpretations of the “parable of the vineyard workers” and proposes Martin Buber’s model of human relationships from “I and Thou” as a basis for the Christian philosophical interpretation of this parable. Next, the author analyzes the types of human relationships represented by the vineyard workers from the perspective of Christian philosophy and elucidates their characteristics. Finally, the author aims to conclude the discussion by mentioning why constant cultivation is necessary for the cultivation of Christian virtues and culture, focusing on the importance of continuous labor while tying the discussion back to the parable.