John 13:14-16

Moffatt(i) 14 Well, if I have washed your feet, I who am your Lord and Teacher, you are bound to wash one another's feet; 15 for I have been setting you an example, that you should do what I have done to you. 16 Truly, truly I tell you, a servant is not greater than his master, nor is a messenger greater than he who sent him.