"As I have done, so you must do"

In this evening's Mass of the Lord's Supper, we will again hear the Gospel of the washing of feet, and Jesus' command (the "Mandatum" from which today gets its name of "Maundy Thursday") to follow the example he set: to wash each other's feet; to "be servants to one another out of love" (as Paul put it).
Last year I gave a retreat at the Cathedral of St. Paul on the theme, "Mary and Paul, Servants of the Lord." In the first talk, I used tonight's Gospel to meditate on what it means to be a servant of the Lord, so I include it here for your Holy Thursday meditation...