On the last night of his life Jesus prayed a prayer that stands as a citadel for all Christians:
“I pray for these followers, but I am also praying for all those who will believe in me because of their teaching. Father, I pray that they can be one. As you are in me and I am in you, I pray that they can also be one in us. Then the world will believe that you sent me” (John 17:20–21 NCV).