About the way of Trinitarian Unity and the Unity within the Church: “that all may be one, Father, just as you are in me, and I am in you, that they also may be one in us” (John 17:21).

Ιn the present study (based on patristic and other texts) an interpretive and clarifying approach is attempted at a doctrinal-theological level of a specific point in the announcement of the Synaxiy of the Community of the Holy Mount Athos (on the 30th of June 2017) which, as it is stated, gives the impression that it presents the positions of the socalled trinitarian ecclesiology. This ecclesiology based on triadology sees the canonical structures of the Church (mainly that of primacy) rooted in the relations among the persons of the Holy Trinity. The point in question refers to the following quotation from the Gospel of John 17,21: There is no other way of existence for the Triune Godhead and another way for the Church-Unity. That all of them may be one, Father, just as you are in me and I am in you. The study recommends especially for the interpretation of John 17, 21 specific interpretive analyses of leading Fathers of the Church and demonstrates that the patristic idea of the Church as an Icon of the Holy Trinity is not to be understood as knowledge and communion (on behalf of man) of the nature and way of existence of the divine Persons, but as unity in common faith and the one head of the Church, Jesus Christ.