John 13:8-10 NIV

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!"
10 Jesus answered, "A person who has had a bath needs only to wash his feet; his whole body is clean. And you are clean,1 though not every one of you."2

References for John 13:10