Verses with the word sop in the New Testament (3 verses):

John 13:26
Jesus answered, He it is, to whom I shall give a sop, when I have dipped it. And when he had dipped the sop, he gave it to Judas Iscariot, the son of Simon.

John 13:27
And after the sop Satan entered into him. Then said Jesus unto him, That thou doest, do quickly.

John 13:30
He then having received the sop went immediately out: and it was night.