This paper discusses the contribution of linguistics to theology, taking the specific example of L.-M. Chauvet’s thought. First, the critique of language as a tool is analyzed. According to Chauvet, language can no longer be considered as a tool, but as a mediation, understood as a “matrix” or environment ( milieu). Linguistic mediation is thus explained from the conceptual perspective of symbol and symbolic order: human subjectivity is inseparable from language, and language has a symbolic structure. Theological reflection follows the concept of mediation and symbol as an important anthropological fact. Faith, then, involves rejecting the illusion of direct contact with God and accepting the mediation of the Church and the sacraments as a process of “accepting ourselves” as children of God and accepting one another in Christ as brothers.