John 13:6-9

He came to Simon Peter, who said to him, “Lord, are you going to wash my feet?” Jesus replied, “You do not realize now what I am doing, but later you will understand.” “No,” said Peter, “you shall never wash my feet.” Jesus answered, “Unless I wash you, you have no part with me.” “Then, Lord,” Simon Peter replied, “not just my feet but my hands and my head as well!”