John 17:19-21

Young's Literal Translation

¹⁹ and for them do I sanctify myself, that they also themselves may be sanctified in truth.

²⁰ `And not in regard to these alone do I ask, but also in regard to those who shall be believing, through their word, in me;

²¹ that they all may be one, as Thou Father [art] in me, and I in Thee; that they also in us may be one, that the world may believe that Thou didst send me.