In the gospel, Jesus gives a command.  “As I have done for you, you should also do.”  What did he do?  A disgusting, humiliating task assigned to the lowest of slaves.  He washed the dirty feet of the disciples.  He said to them, and he says to me and you.  “As I have done, you should also do.”  You should give your life over to another out of love, even if that means performing the lowest, most humiliating task.  You should become washers of dirty feet.