John 13:3-7

Jesus knew that the Father had put him in complete charge of everything, that he came from God and was on his way back to God. So he got up from the supper table, set aside his robe, and put on an apron. Then he poured water into a basin and began to wash the feet of the disciples, drying them with his apron. When he got to Simon Peter, Peter said, “Master, you wash my feet?” Jesus answered, “You don’t understand now what I’m doing, but it will be clear enough to you later.”