Commentaries
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.
18, 19. I speak not of you all—the "happy are ye," of Joh 13:17, being on no supposition applicable to Judas.
I know whom I have chosen—in the higher sense.
But that the scripture may be fulfilled—that is, one has been added to your number, by no accident or mistake, who is none of Mine, but just that he might fulfil his predicted destiny.
He that eateth bread with me—"did eat of my bread" (Ps 41:9), as one of My family; admitted to the nearest familiarity of discipleship and of social life.
hath lifted up his heel against me—turned upon Me, adding insult to injury. (Compare Heb 10:29). In the Psalm the immediate reference is to Ahithophel's treachery against David (2Sa 17:1-23), one of those scenes in which the parallel of his story with that of His great Antitype is exceedingly striking. "The eating bread derives a fearful meaning from the participation in the sacramental supper, a meaning which must be applied for ever to all unworthy communicants, as well as to all betrayers of Christ who eat the bread of His Church" (Stier, with whom, and others, we agree in thinking that Judas partook of the Lord's Supper).