21 When Jesus had thus spoken, he was troubled in spirit, and testified, "Truly, truly, I say to you, one of you will betray me." 22 The disciples looked at one another, uncertain of whom he spoke. 23 One of his disciples, whom Jesus loved, was lying close to the breast of Jesus; 24 so Simon Peter beckoned to him and said, "Tell us who it is of whom he speaks." 25 So lying thus, close to the breast of Jesus, he said to him, "Lord, who is it?" 26 Jesus answered, "It is he to whom I shall give this morsel when I have dipped it." So when he had dipped the morsel, he gave it to Judas, the son of Simon Iscariot. 27 Then after the morsel, Satan entered into him. Jesus said to him, "What you are going to do, do quickly." 28 Now no one at the table knew why he said this to him. 29 Some thought that, because Judas had the money box, Jesus was telling him, "Buy what we need for the feast"; or, that he should give something to the poor.30 So, after receiving the morsel, he immediately went out; and it was night.
Meditation: Jesus' disciples were put to the test as Jesus prepared to make the final and ultimate sacrifice of his own life for their sake and for all the world. What was different between Peter and Judas? Judas deliberately betrayed his Master while Peter, in a moment of weakness, denied him with an oath and a curse. Judas' act was cold and calculated. Peter, however, never meant to do what he did. He acted impulsively, out of weakness and cowardice. Jesus knew both the strength of Peter's loyalty and the weakness of his resolution. He had a habit of speaking with his heart without thinking through the implications of what he was saying. The treachery of Judas, however, is seen at its worst when Jesus makes his appeal by showing special affection to him at his last supper. John says that Satan entered into Judas when he rejected Jesus and left to pursue his evil course. Satan can twist love and turn it into hate. He can turn holiness into pride, discipline into cruelty, affection into complacency. We must be on our guard lest Satan turn us from the love of God and the path which God has chosen for us. The Holy Spirit will give us grace and strength in our time of testing. If we submit to Jesus we will walk in the light of his truth and love. If we turn our backs on him we will stumble and fall in the ways of sin and darkness. Are you ready to follow Jesus in his way of the cross?
"Give me, O Lord, a steadfast heart which no unworthy thought can drag downwards; an unconquered heart which no tribulation can wear out; an upright heart which no unworthy purpose may tempt aside. Bestow upon me also, O Lord my God, understanding to know you, diligence to seek you, wisdom to find you, and a faithfulness that may finally embrace you; through Jesus Christ, our Lord." (Prayer of Thomas Aquinas)