When we think of being in union with others we often have a thin or shallow conception of unity. We are typically content to act without interfering with one another, toward goals that are similar enough that we all benefit from our common effort. But it is not necessarily a deeply personal unity, unless we're talking about marriage or particularly strong friendships. And even these are often tactical, with each person pursuing the relationship for his own benefit, although also providing benefit for the other to enjoy.
so that they may all be one,
as you, Father, are in me and I in you,
that they also may be in us,
that the world may believe that you sent me.
The union that is possible and that is meant to characterize Christian relationships transforms the merely mercenary alliances that tend to define relationships outside the Body of Christ. It is built upon something more substantial than egos, and rooted in something deeper than individual neediness. It is a supernatural sort of unity, which is only possible because God allows us to share in the relationship between Father, Son, and Spirit, that is properly his. This union is possible when being-for-self is replaced with being-for-the-other, as with the Father, who loves the Son completely, and the Son, who gives everything for his Father, and for the Spirit who is the manifestation of the love between them. They are not three pieces of a whole that together yield a result greater than the sum of its parts. Rather they are both a true unity, and yet also real distinction. Their relationships don't ultimately collapse into a bland and monotonous oneness. There is space, yes, even necessity, for individual identity in the Trinity, because only thus can the love that exists from all eternity be received, only by Persons.
And I have given them the glory you gave me,
so that they may be one, as we are one,
I in them and you in me,
The glory of Jesus is a consequence of the fact that his existence is a revelation of the Father himself, that he himself is a perfect image of the Father's glory. He gives this glory to his disciples and to us precisely by enabling us to enter into relationship with his Father and himself. He goes beyond the normal forms of self-introduction that contain information about one's past, family, or other interesting anecdotes, and reveals the luminous inner life that is at the very essence of the identity of the Triune God. When we receive this revelation we are transformed by it. We have to be. Only by being rewired for this higher level of life and participating in it can we know it in any meaningful sense. Love that only reaches the level of talk amounts to no more than idle words. But the love Jesus reveals is a force that is poured into us by the Spirit and it does not leave us unchanged.
I in them and you in me,
that they may be brought to perfection as one,
that the world may know that you sent me,
and that you loved them even as you loved me.
In general it seems fair to say that we have been inadequate witnesses to the glory we've been given. We barely even manage a political or utilitarian unity, even in the bounds of the Church. And this political agreement to which we tenuously cling is not often polite. It is not the result of a unified and selfless pursuit of God. It is rather the compromise of many conflicting agendas when absolute victory for any one of them could not be achieved. We are surely meant for more than this. And indeed, it must be possible, since Jesus prayed that it would be so.
It may be a deficiency on the part of we, the members of the Church, that has rendered Christianity impossible for the modern world to believe. Our unity is no more impressive than that of the Sadducees and Pharisees in today's reading from Acts. They were ultimately prevented from achieving their common purpose in opposing Paul by their lack of true union. But we miss out on something much greater when we don't allow the glory of the Father and the Son to be the source of our union, the strength of the Church, and her truest identity. We are meant to live that union now, and to know a foretaste of the glory to be revealed, because that glory is also where we are headed, and meant to abide for eternity.
Father, they are your gift to me.
I wish that where I am they also may be with me,
that they may see my glory that you gave me,
because you loved me before the foundation of the world.
John Keating - Come Holy Spirit






