Pope Francis washes the feet of prisoners in Civitavecchia, Italy, on April 14. (photo: National Catholic Register / Vatican Media)
Before the Passover, Jesus knew who would betray Him. During a meal one night, Jesus took off His garment and began to wash all of the disciples' feet--this is strange because it could not even be expected from a Jewish slave. Peter is flabbergasted: Why should Jesus be washing his feet? Why not the other way around?
They have a discussion about why this needs to take place. Peter would like to be washed all over by Jesus (if it is really that important), but Jesus says that it is not necessary perhaps in an allusion to baptism. He says that He did this for a reason, specifically to be a sign to them of how one should act.
If I, therefore, the master and teacher, have washed your feet, you ought to wash one another’s feet. I have given you a model to follow, so that as I have done for you, you should also do. (John 13:14-15)
Jesus then mentions that He knows one will betray Him. He dips a morsal and then gives it to Judas Iscariot, telling him "Whatever you are going to do, do it quickly." But many thought Jesus just gave him money to buy food for them or offer some to the poor.
Jesus leaves and says that He will only be with everyone for a little while longer, and that where He goes they cannot go. He repeats the call again: love one another. Peter says he wishes to go with Jesus, but then Jesus replies that he can't be serious since he will deny Jesus.