I speak not of you all: I know whom I have chosen: but that the scripture may be fulfilled, He that eats bread with me has lifted up his heel against me.
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Cornelius a Lapide
AD 1637
I speak not of you all, because I know that Judas will not do these things which I have said. I know whom I have chosen. S. Augustine (Tract59) explains this with reference to the eternal predestination and election to glory by God:—I speak not of all, but of those only whom I have chosen to glory, and Judas I have not chosen. This, however, seems rather harsh, both because the whole blame must be laid upon Judas and not upon Christ, and His election from which He excluded Judas, and in the next verse Christ lays the blame on Judas; and then again because Christ, when He speaks of the eternal election and predestination of God, is not wont to attribute it to Himself but to the Father, for it is a primary function of Providence, which is the attribute of the Father. Christ therefore is here speaking of His temporal election, by which Hebrews , as Prayer of Manasseh , chose twelve apostles (see Luke vi.), and Judas himself among the number. This is the view of Toletus and Maldonatus.
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The meaning of these words is involved in no slight uncertainty. For while saying that they shall be blessed, who, knowing what is good, are ever zealous to carry it out in action, He straightway adds: I speak not of all. In these words, as I with many others believe, He hints darkly at the traitor; for in no enviable plight is one who is hated of God, and never would one be reckoned among the blessed who had so degraded his soul as to make it capable of such horrible impiety. And this interpretation of the passage before us is the one currently accepted with most men: but there is besides yet another possible meaning. For as Christ was intending to say, according to the perfect and most holy word of Scripture: He that eateth My bread did magnify himself contemptuously, or lifted up his heel against Me, He in some sort explains Himself beforehand, and carefully avoids giving pain to the faithful company of the other disciples, by attaching the force of His reproach to one single indivi...
Shall lift up his heel against me. It is the sense of those words, (Psalm xl. 10.) hath supplanted me; and they were spoken of Judas's sin in betraying Christ. (Witham)
Jesus Christ applies in this place to the perfidy of Judas, that which David appears to have said on occasion of the perfidy of Achitophel, who was thus a figure of the perfidious Judas. (Bible de Vence)