John 13:7-9 NIV

7 Jesus replied, "You do not realize now what I am doing, but later you will understand."1

References for John 13:7

      8 "No," said Peter, "you shall never wash my feet." Jesus answered, "Unless I wash you, you have no part with me."
      9 "Then, Lord," Simon Peter replied, "not just my feet but my hands and my head as well!"