With the foot washing there is the obvious implication that we should serve and wash other people’s feet but then there is also the invitation to be washed; to allow someone to stoop down and wash our feet.
It is my experience that it is this movement that is hardest for those who see themselves as ‘givers’.  Jesus’ stern words to Peter “unless I wash you, you have no share with me” should be a warning and an invitation to us. 

In always giving, we can easily mislead ourselves into thinking that we don’t need others.  We can also start to see ourselves as gods of the God we represent.  So we’re invited to be washed by Jesus, to become vulnerable and break through our dusty pride that can so easily collect when we’re busy accumulating ‘ministry miles.’