Perfect unison is hard to come by and takes a lot of work to achieve. I think of a choir seeking to make one unified sound. I think of a band or orchestra trying to play in unison both melodically and rhythmically. I think of pairs in figure skating trying to skate in sync with one another or members of a synchronized swimming team aiming for unity in their movements.
While these things are not easy, it seems even more difficult for a group of people to have the same sort of unity as the members of the Trinity. Yet this is Jesus’ prayer for his followers, as a witness to the world that he really is the Son of God.
The key to this oneness may be in the verse quoted above. Perhaps the oneness comes when you have a group of people who are infused with the love of God and who have Christ in their minds and hearts. They might not agree on every issue, but they would treat one another with love, just as they would treat Jesus.
Holy God, infuse our hearts and minds with your love, that we may be one as you are one, through Jesus Christ. Amen. — LLH