John 13:12-16

When he had finished washing their feet, he put on his clothes and returned to his place. ‘Do you understand what I have done for you?’ he asked them. ‘You call me “Teacher” and “Lord”, and rightly so, for that is what I am. Now that I, your Lord and Teacher, have washed your feet, you also should wash one another’s feet. I have set you an example that you should do as I have done for you. Very truly I tell you, no servant is greater than his master, nor is a messenger greater than the one who sent him.