John 13:14

11for He knew him who is delivering Him up; because of this He said, “You are not all clean.”

12When, therefore, He washed their feet, and took His garments, having reclined again, He said to them, “Do you know what I have done to you?

13You call Me the Teacher and the LORD, and you say well, for I am;

14if then I washed your feet—the LORD and the Teacher—you also ought to wash one another’s feet.

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

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

17if you have known these things, you are blessed if you may do them;