That they all may be one; as you, Father, are in me, and I in you, that they also may be one in us: that the world may believe that you have sent me.
All Commentaries on John 17:21 Go To John 17
Cyprian of Carthage
AD 258
But such shall undergo the judgment of God according to their desert, as depart from His words who prays to the Father for unity, and says, "Father, grant that, as Thou and I are one, so they also may be one in us."