John 13:14 - 13:17
14 If I then, the Lord and the Teacher, washed your feet, you also ought to wash one another’s feet. 15 For I gave you an example that you also should do as I did to you. 16 Truly, truly, I say to you, a slave is not greater than his master, nor is one who is sent greater than the one who sent him. 17 If you know these things, you are blessed if you do them.