For he knew who was to betray him; that was why he said, "You are not all clean."
When he had washed their feet, and taken his garments, and resumed his place, he said to them, "Do you know what I have done to you?
You call me Teacher and Lord; and you are right, 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 also should do as I have done to you.
Truly, truly, I say to you, a servant is not greater than his master; nor is he who is sent greater than he who sent him.
If you know these things, blessed are you if you do them.
I am not speaking of you all; I know whom I have chosen; it is that the scripture may be fulfilled, 'He who ate my bread has lifted his heel against me.'
I tell you this now, before it takes place, that when it does take place you may believe that I am he.
Truly, truly, I say to you, he who receives any one whom I send receives me; and he who receives me receives him who sent me."
When Jesus had thus spoken, he was troubled in spirit, and testified, "Truly, truly, I say to you, one of you will betray me."
Revised Standard Version of the Bible, copyright 1952 [2nd edition, 1971] by the Division of Christian Education of the National Council of the Churches of Christ in the United States of America. Used by permission. All rights reserved. (Revised Standard Version - Holy Bible)