John 17:18-21

As you sent me into the world, I have sent them into the world. For them I sanctify myself, that they too may be truly sanctified. “My prayer is not for them alone. I pray also for those who will believe in me through their message, 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.