The servant is not ... - This was universally true, and this they were to remember always, that they were to manifest the same spirit that he did, and that they were to expect the same treatment from the world. See the notes at Matthew 10:24-25.
Related Commentaries of John 13:16
John 13:16-17
16 Verily, verily, I say unto you, The servant is not greater than his lord; neither he that is sent greater than he that sent him.
17 If ye know these things, happy are ye if ye do them.