John 13:16 YLT

¹⁴  if then I did wash your feet -- the Lord and the Teacher -- ye also ought to wash one another's feet.

¹⁵  'For an example I gave to you, that, according as I did to you, ye also may do;

¹⁶  verily, verily, I say to you, a servant is not greater than his lord, nor an apostle greater than he who sent him;

¹⁷  if these things ye have known, happy are ye, if ye may do them;

¹⁸  not concerning you all do I speak; I have known whom I chose for myself; but that the Writing may be fulfilled: He who is eating the bread with me, did lift up against me his heel.