20 Most assuredly, I say to you, he who receives whomever I send receives Me; and he who receives Me receives Him who sent Me."
21 When Jesus had said these things, He was troubled in spirit, and testified and said, "Most assuredly, I say to you, one of you will betray Me." 22 Then the disciples looked at one another, perplexed about whom He spoke. 23 Now there was leaning on Jesus' bosom one of His disciples, whom Jesus loved. 24 Simon Peter therefore motioned to him to ask who it was of whom He spoke. 25 Then, leaning back on Jesus' breast, he said to Him, "Lord, who is it?" 26 Jesus answered, "It is he to whom I shall give a piece of bread when I have dipped it." And having dipped the bread, He gave it to Judas Iscariot, the son of Simon. 27 Now after the piece of bread, Satan entered him. Then Jesus said to him, "What you do, do quickly." 28 But no one at the table knew for what reason He said this to him. 29 For some thought, because Judas had the money box, that Jesus had said to him, "Buy those things we need for the feast," or that he should give something to the poor. 30 Having received the piece of bread, he then went out immediately. And it was night.
Matthew Henry's Commentary on John 13:20-30
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.