You ought to wash one another's feet

So, during supper, fully aware that the Father had put everything into his powerand that he had come from God and was returning to God,he rose from supper and took off his outer garments.He took a towel and tied it around his waist.Then he poured water into a basinand began to wash the disciples’ feetand dry them with the towel around his waist. John 13:2-5