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.

26. Jesus answered—also inaudibly, the answer being communicated to Peter perhaps from behind.

He … to whom I shall give a sop when I have dipped it—a piece of the bread soaked in the wine or the sauce of the dish; one of the ancient ways of testifying peculiar regard; compare Joh 13:18, "he that eateth bread with Me."

And when he had dipped … he gave it to Judas, &c.—Thus the sign of Judas' treachery was an affecting expression, and the last, of the Saviour's wounded love!