So after he had washed their feet, and had taken his garments, and was seated again, he said unto them, Know you what I have done to you? You call me Teacher and Lord: and you say rightly; for so I am. If I then, your Lord and Teacher, have washed your feet; you also ought to wash one another's feet. For I have given you an example, that you should do as I have done to you. Verily, verily, I say unto you, The servant is not greater than his lord; neither he that is sent greater than he that sent him. If you know these things, happy are you if you do them. (John 13:12-17)