John 9:15

9:15 So the Pharisees asked him again how he had gained his sight. He replied, “He put mud on my eyes and I washed, and now I am able to see.”

John 13:10

13:10 Jesus replied, “The one who has bathed needs only to wash his feet, but is completely clean. And you disciples are clean, but not every one of you.”

John 13:12

13:12 So when Jesus had washed their feet and put his outer clothing back on, he took his place at the table again and said to them, “Do you understand what I have done for you?