Many therefore of his disciples, when they had heard this, said, This is a hard saying; who can hear it?
All Commentaries on John 6:60 Go To John 6
Bede
AD 735
Mystically, Capernaum, which means beautiful town, stands for the world: the synagogue, for the Jewish people. The meaning is, that our Lord has, by the mystery of the incarnation, manifested Himself to tile world, and also taught the Jewish people His doctrines.
Our Lord knew well the intentions of the other disciples which stayed, as to staying or going; but yet He put the question to them, in order to prove their faith, and hold it up to imitation: Then said Jesus to the twelve, Will you also go away? .
Or we must say, that He elected the eleven for one purpose, the twelfth for another: the eleven to fill the place of Apostles, and persevere in it to the end; the twelfth to the service of betraying Him, which was the means of saving the human race.