Commentaries:
Barnes' Notes
Jesus answered - That is, he answered John. It does not appear that either Judas or the other apostles heard him.
Shall give a sop - The word translated "sop" means a morsel, a piece of bread, or anything else eaten - as much as we are accustomed to take at a mouthful. Jesus was about to dip it in the sauce which was used at the Passover. The word "dip," in the original, is that from which is derived the word "baptize." It means here that Jesus would dip it into the sauce as we do a piece of bread. It is probable that it was not an unusual thing for the master of a feast to help others in this way, as it does not appear to have attracted the attention of the others as at all remarkable. It was an indication to John who the betrayer was, and a hint which Judas also probably understood.
Other Barnes' Notes entries containing John 13:26:
Proverbs 19:24
Matthew 26:21-24
John 6:71
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