John 17:14

The revelations and teachings that Jesus had given the Eleven would be the basis for their remaining loyal, safe, and joyful. Nevertheless the world would hate them because they were no longer of the world even as the world hated Jesus because He was not of the world. The idea is not so much that the disciples’ outlook was different from the world’s but that their origin and character were since they had believed in Jesus. [Note: Morris, p. 646.] Jesus spoke of the Father and the world as opposing loyalties (cf. 1 John 2:15).

Jesus was apparently saying some of these things in prayer for the disciples’ benefit, as He had earlier prayed with the onlookers at Lazarus’ tomb in view (cf. John 11:42).