Lifting up his eyes to heaven, Jesus prayed saying: “I pray not only for these, but also for those who will believe in me through their word, 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.” (Jn 17:20-26)
https://bible.usccb.org/bible/readings/060222.cfm
The High Priestly Prayer of Jesus concludes today with the Lord continuing to pray that we may be one so that the world may believe that he was sent by God. How important is Christian Unity—Christian Unity is not just a nice idea, it is essential if the world is to believe. Today’s photo is of Pope Francis and the Ecumenical Patriarch Bartholomew praying together at the Holy Sepulcher in Jerusalem, May 25, 2014, commemorating the 50th anniversary of the signing of the joint declaration by Pope Paul VI and the Patriarch Athenagoras (1964) committing the Catholic and Orthodox Churches to work for full sacramental unity in obedience to command of Jesus Christ that his "disciples may be one."