The Man of Peace Who Ate His Bread: Achitophel and Judas
Old Testament: Psalms 40:10
For even the man of peace, in whom I trusted, who ate my bread, hath greatly supplanted me.
Old Testament, also: 2 Kings 17:23
But Achitophel seeing that his counsel was not followed, saddled his ass, and arose and went home to his house and to his city, and putting his house in order, hanged himself, and was buried in the sepulchre of his father.
New Testament: John 13:18; Matthew 27:5
I speak not of you all: I know whom I have chosen. But that the scripture may be fulfilled: He that eateth bread with me, shall lift up his heel against me. ... And casting down the pieces of silver in the temple, he departed: and went and hanged himself with an halter.
The connection
David's psalm mourns a betrayal from inside the circle of trust: the man of peace, who shared his bread, turned against him. The betrayal it has long been heard against is Absalom's revolt, and the counsellor who went over to it was Achitophel, whose counsel was taken as if a man had consulted God, and who, when his counsel was not followed, went home, set his house in order and hanged himself. At the Last Supper Christ takes the psalm on His own lips and says it is being fulfilled: the one who eats bread with Him will lift up his heel against Him. Judas is the man of peace at the table, and he ends as Achitophel ended, hanged by his own hand, the counsel that betrayed the king turning at last on the one who gave it.
Moral sense
Nearness to Christ's table is not the same as fidelity to Him; the betrayer was at the Supper. And sorrow that turns inward into despair, as it did for both Achitophel and Judas, is not repentance. Peter failed Christ that same night, went out and wept, and was restored.
The Fathers
St Augustine, Exposition on Psalm 41 (Douay 40), 10: "The man of My peace, in whom I trusted, which did eat of My bread, hath enlarged his heel against Me... Who is this man of His peace? Judas." The same father reads the psalm of Absalom's revolt as spoken in the Person of Christ, with Absalom standing for "that undutiful disciple who betrayed Him" (Exposition on Psalm 3, 1).
Warrant
Scriptural core: Christ Himself says Psalm 40:10 is being fulfilled in Judas (John 13:18). Checked in the Greek and the Hebrew, John's wording departs from the Septuagint here. The Septuagint has esthio, megaluno and pternismos, a tripping up; John has trogo, epairo and pterna, the heel, and the Hebrew reads aqev, a heel. Bread, artos, is the only noun or verb the two Greek texts share, so John is rendering the Hebrew. The Achitophel half is not in the psalm or the Gospel: the psalm never names the betrayer, no Father found for this entry draws the hanging parallel, and Augustine, reading the same revolt, makes Absalom the figure of Judas. It has one support in the Greek, which the linter cannot see. The Septuagint says Achitophel apengxato, hanged himself, and Matthew uses that same form of the same verb for Judas, its only occurrence in the New Testament; CATSS files it under ancho with the preverb split off and STEPBible under apancho, so the two corpora never match it. That is a verbal echo, not a citation, and this half stays interpretive.