“If I then, your Lord and Teacher, have washed your feet, you also ought to wash one another’s feet.”
Listen to the "Verse by Verse" episode covering this scripture.
Washing feet was a sign of kind hospitality, generally assigned to the lowest slave. It was dirty work considering the dusty roads of the Holy Land. Yet our Creator and Savior was willing to lower Himself yet again as a powerful lesson we are to copy.
Washing feet as part of the New Testament Passover reminds us to always look for ways to serve, whether menial or major. The Christian life is a life of service, with a foot-washing attitude.