This verse expresses the bond between Jesus and the disciples. What you go through as a disciple parallels what your Teacher went through (with the cross as the lowest point), and what he is still going through, for how often Jesus is still offended.
22 Heureux serez-vous, lorsque les hommes vous haïront, lorsqu'on vous chassera, vous outragera, et qu'on rejettera votre nom comme infâme, à cause du Fils de l'homme!