Richard
They were Jews, and even back then, Jews believe in washing their hands before eating.
Assuming that the Last Supper was a Passover Seder, Jews wash their hands TWICE before eating, as part of the ritual.
Paul
They didn't know about germs, but they knew about dirt.
Rayal
Dusty roads, dirty in general led to foot washing and personal hygiene with regards to defication has been a feature of human civilization for a long timeĀ
Anonymous
Of course he didn't know about germs. What was he, God or something?
Anonymous
THIS PASSAGE IS ABOUT INNER PURITY...