A house divided against itself cannot stand.
If any does not gather with Him, then that person scatters.
Essentially, Christian Unity is a precious biblical doctrine for the entire body of Christ.
John 17:...20 “My prayer is not for them alone. I pray also for those who will believe in me through their message, 21 that all of them may be one, Father, just as you are in me and I am in you. May they also be in us so that the world may believe that you have sent me.
So, did you believe in Him through their (the Apostles’) message? Did I? Did John Smith on the other side of the world?
If so, then Jesus wants us to be ONE.