18 I am not speaking of all of you; I know whom I have chosen. But it is to fulfill the scripture, "The one who ate my bread has lifted his heel against me.' 19 I tell you this now, before it occurs, so that when it does occur, you may believe that I am he. 20 Very truly, I tell you, whoever receives one whom I send receives me; and whoever receives me receives him who sent me."
21 After saying this Jesus was troubled in spirit, and declared, "Very truly, I tell you, one of you will betray me." 22 The disciples looked at one another, uncertain of whom he was speaking. 23 One of his disciples-the one whom Jesus loved-was reclining next to him; 24 Simon Peter therefore motioned to him to ask Jesus of whom he was speaking. 25 So while reclining next to Jesus, he asked him, "Lord, who is it?" 26 Jesus answered, "It is the one to whom I give this piece of bread when I have dipped it in the dish." So when he had dipped the piece of bread, he gave it to Judas son of Simon Iscariot. 27 After he received the piece of bread, Satan entered into him. Jesus said to him, "Do quickly what you are going to do." 28 Now no one at the table knew why he said this to him. 29 Some thought that, because Judas had the common purse, Jesus was telling him, "Buy what we need for the festival"; or, that he should give something to the poor. 30 So, after receiving the piece of bread, he immediately went out. And it was night.
Matthew Henry's Commentary on John 13:18-30
Commentary on John 13:18-30
(Read John 13:18-30)
Our Lord had often spoken of his own sufferings and death, without such trouble of spirit as he now discovered when he spake of Judas. The sins of Christians are the grief of Christ. We are not to confine our attention to Judas. The prophecy of his treachery may apply to all who partake of God's mercies, and meet them with ingratitude. See the infidel, who only looks at the Scriptures with a desire to do away their authority and destroy their influence; the hypocrite, who professes to believe the Scriptures, but will not govern himself by them; and the apostate, who turns aside from Christ for a thing of naught. Thus mankind, supported by God's providence, after eating bread with Him, lift up the heel against Him! Judas went out as one weary of Jesus and his apostles. Those whose deeds are evil, love darkness rather than light.