They are not of the world. — These words are repeated from John 17:14. The thought of their being still in the world leads on to their mission in the world, and the prayer passes from the thought of preservation to that of their sanctification for their work. Their fitness for this is prominent in this verse. Already they are not of the world, even as He is not of the world.
Related Commentaries of John 17:16
John 17:16
16 They are not of the world, even as I am not of the world.