Before Christ's sacrifice on the cross, He offered up a fervent prayer for all who would believe in His name, asking His Father to preserve them in divine unity. These words of Christ are not a call to external unity, but to absolute internal unity, similar to the unity of the three persons in the Holy Trinity, that is, to the unity that man lost because of the fall. They are based on the three persons and are represented by them, and signify man's salvation and perfection.

The Church is the link between humans themselves, and between them and God, in the image of the partnership existing between the Holy Trinity. In this sense, there was a Church in Paradise, but the fall of man from the first communion led to the transfer of the Church from Paradise to earth.