Jesus answered, “It is the one to whom I give this morsel after I have dipped it.” Then He dipped the morsel and gave it to Judas son of Simon Iscariot.
26. To whom I shall give the dipped sop. It may be asked, what purpose did it serve to give a dipped sop, for discovering the traitor, when Christ might have openly pointed him out by name, if he wished to make him known?
We have here the discovery of Judas's plot to betray his Master. Christ knew it from the beginning; but now first he discovered it to his disciples, who did not expect Christ should be betrayed, though he had often told them so, much less did they suspect that one of them should do it. Now here, I.
Commenting on John 13:18-30
Jesus answered, he it is,.... Jesus replied, by whispering; for had he spoken out, the rest could not have been so ignorant, as they still continued, after the sign was given: Christ, I say, whispered to John, and told him by what sign he might know the person, and that it was he, to whom, says he, I shall give a sop, when I have dipped it.