A lack of unity will kill us all. Jesus knew this, and so did St. Paul. In fact, St. Paul used a lack of unity among the Jews to save his own life. He knew that the Pharisees, of which he was one, believed in the resurrection of the dead, and angels and spirit. He knew that the Sadducees did not (which is why they are sad, you see…). When Paul appealed to the Pharisees’ belief in the resurrection of the dead, he got them on their side, and the skirmish that ensued caused the commander to whisk Paul to safety. He was not to die this day; the Lord had other plans for him.
As Jesus gets ready for his own death in the gospel reading today, he prays for the unity of the first disciples. He knew that they would be challenged greatly by the world, because they were no longer of the world. They belonged to God now, and that would be the source of their unity. That unity would keep them together and ensure that a reasoned, unified message would be proclaimed throughout the world and throughout the ages. That was the only way the gospel could be proclaimed to every creature on earth.
In our day, unity is just as critical as it ever was. We still believe in ONE holy, catholic and apostolic church. We believe that Jesus came to found just ONE church, and that the fragmentations that exist among us are the result of sinfulness and broken humanity. We need to be people who witness to the joy of our faith so that we can bind up all that disunity and become once again one people, healed of all divisions. We are called to be one, just as Jesus and the Father are one, so that we can witness to all the world the saving power of our one, almighty God.