Evêque Anastase Yannopoulos

This article offers an exegetical meditation on John 17:21 — "That the world may believe" — a verse usually associated with the contemporary ecumenical movement. Bishop Anastasios Yannoulatos broadens its interpretation by drawing on Johannine exegesis: the unity sought by Christ's high priestly prayer goes beyond the reunion of divided Christians to embrace the communion of all believers across cultures and generations. The article develops a Trinitarian and doxological ecclesiology: the unity of the Church is modeled on the communion of the divine persons, and the "glory" transmitted by Christ — revealed in the kenosis and the resurrection — constitutes the ontological foundation of mission. The theological contribution lies in the articulation between liturgical life, the missionary presence of the priest, and the transformation of the world, with the Liturgy presented as the preeminent locus of this transfiguring communion.