Chapters 13-17 of John's Gospel take place on the last night of Jesus' night. This is the night he will be betrayed by one of his own, Judas. Jesus begins the night by sharing a meal with his closest friends, his disciples. At this meal, Jesus does the unthinkable. He showcases his love by lowering himself to the position of a slave and washing their dirty feet. Then he tells them to go and do likewise.
God uses our hands to wash the dirty feet of other people.