So if I, your Lord and Teacher, have washed your feet, you also ought to wash one another's feet. For I have set you an example, that you also should do as I have done to you. The quality of a lifetime becomes especially apparent in one's last acts before death arrives. Purposefulness is heightened almost to the breaking point. Deeds and words of the dying person burn themselves into our memory.
Washing feet is a most humble act of service.
That is the deed He gave to each disciple. As the Church lives within herself, rather, so lives the Church within her world of neighbors and all fellow creatures. Albert Schweitzer knew this. So did Francis of Assisi. The Community that is by its newfound nature the serving community not only washes one another's feet.