"By this everyone will know that you are my disciples, if you love one another." (John 13:35)
We have arrived at the Last Supper, and John's account does not begin with the breaking of bread. It begins with Jesus removing his outer garment, wrapping a towel around his waist, pouring water into a basin, and washing his disciples' feet. Foot-washing was the work of the lowest household slave. No Jewish master washed his disciples' feet. No Roman lord knelt before his servants. What Jesus does here is not merely a gesture of humility. It is a revelation of God. This is what God does: he kneels before the creatures he has made.
Peter's reaction is predictable and entirely human: You shall never wash my feet. He cannot bear the inversion of the order he understands. Jesus tells him: unless I wash you, you have no part with me. Then Peter overcorrects magnificently: wash all of me. Jesus responds with a precision that the Church has applied to the sacraments: whoever has bathed is clean and needs only to have their feet washed. Baptism gives us a complete washing. Confession restores us when we are soiled by daily sin (CCC 1425).
After Judas leaves into the night, Jesus turns to the remaining eleven and gives them what he calls a new commandment: Love one another as I have loved you (v.34). The word "new" is significant. It is not that love is new. It is the measure of love that is new: as I have loved you. The standard is no longer "love your neighbour as yourself." It is now: love as the Son of God loves, with a love that kneels down, that serves without status, that lays down its life.
Brothers and sisters, Jesus says the world will recognise his disciples by one thing: love for one another. Not by correct doctrine alone, not by impressive buildings, not by successful programmes, but by the quality of love visible among us. The parish that washes one another's feet, that serves without status, that bears with one another's failings in charity, is the parish that evangelises without saying a word. How would someone watching your community from the outside describe the love they see?
Lord Jesus, who knelt before your disciples and washed their feet: cleanse us of the pride that keeps us from serving others as you served. Give us hearts generous enough to love one another as you have loved us, so that the whole world may see and come to know you. Through Christ our Lord. Amen.