John 13:12-20 - The Meaning Of Footwashing
12 So after he had washed their feet, and had taken his garments, and was set down again, he said to them, Know ye what I have done to you? 13 Ye call me Master, and Lord: and ye say well; for so I am. 14 If I then, your Lord and Master, have washed your feet; ye also ought to wash one another's feet. 15 For I have given you an example, that ye should do as I have done to you.
16 Verily, verily, I say to you, The servant is not greater than his lord; neither he that is sent greater than he that sent him. 17 If ye know these things, happy are ye if ye do them. 18 I speak not of you all; I know whom I have chosen: but that the scripture may be fulfilled, He that eateth bread with me, hath lifted up his heel against me.
19 Now I tell you before it cometh, that when it hath come to pass, ye may believe that I am he. 20 Verily, verily, I say to you, He that receiveth whomsoever I send, receiveth me; and he that receiveth me, receiveth him that sent me.