John 13:10-12

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.” 13:11 (For Jesus knew the one who was going to betray him. For this reason he said, “Not every one of you is clean.”)

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?