John 17:20-21

Neither for these alone do I pray [it is not for their sake only that I make this request], but also for all those who will ever come to believe in (trust in, cling to, rely on) Me through their word and teaching, That they all may be one, [just] as You, Father, are in Me and I in You, that they also may be one in Us, so that the world may believe and be convinced that You have sent Me.