John 13:18

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.
All Commentaries on John 13:18 Go To John 13

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. I know and have known whom and what manner of men I have elected to be apostles, who will be worthy, and who will not, who will persevere, and therefore be blessed, and who will not. I know those who will do these things which I have said, and who will not, as I know and have known, that Judas being chosen by Me, would not do these things, but would be My betrayer. Wherefore I did not choose him in ignorance, nay rather I foreknew and foresaw that he would betray Me, yet did I choose him to use his malice for the common good, that through him My Passion might be fulfilled, and through it the salvation and redemption of men. Wherefore He adds,—But that the Scripture may be fulfilled; He that eateth bread with Me shall lift up his heel against Me. I knew that Judas would be My betrayer, yet I elected him an Apostle, that through him the Scripture which foretold My Passion and its manner, might be fulfilled, for it foretold that it should be begun by the treachery of My familiar friend, of one of Mine own household, of Judas who has abused My friendship and familiarity in order to betray Me. And I have been willing to allow this, that from his wickedness I may elicit an infinite good—the salvation, namely, of the world—just as I permitted the fall of Lucifer and of Adam, to draw from thence the Incarnation of Christ. Lift up his heel. He is quoting Ps. xl9 , where the Septuagint translate "made great upon Me his tripping up," and S. Jerome, "lifted up against me the sole of his foot," that Isaiah , tried to deceive, trip up, betray, and bring Me to ruin; nay, he did indeed trip Me up by his deceit, caused Me to fall into the hands of the Jews, and brought Me to My Cross and death. David is speaking literally of Achitophel, who betrayed him to his son Absalom, but mystically of Judas, the betrayer of Christ, of whom Achitophel was a type as David was of Christ.
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Knowing this first, that no prophecy of the scripture is of any private interpretation - 2 Peter 1:20

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