It is the spirit that gives life; the flesh profits nothing: the words that I speak unto you, they are spirit, and they are life.
All Commentaries on John 6:63 Go To John 6
John Chrysostom
AD 407
His meaning is, You must hear spiritually what relates to Me, for he who hears carnally is not profited, nor gathers any advantage. It was carnal to question how He came down from heaven, to deem that He was the son of Joseph, to ask, How can he give us His flesh to eat? All this was carnal, when they ought to have understood the matter in a mystical and spiritual sense. But, says some one, how could they understand what the 'eating flesh' might mean? Then it was their duty to wait for the proper time and enquire, and not to abandon Him.
The words that I speak unto you, they are spirit and they are life.
That is, they are divine and spiritual, have nothing carnal about them, are not subject to the laws of physical consequence, but are free from any such necessity, are even set above the laws appointed for this world, and have also another and a different meaning. Now as in this passage He said spirit, instead of spiritual, so when He speaks of flesh, He meant not carnal things, but carnally hearing, and alluding at the same time to them, because they ever desired carnal things when they ought to have desired spiritual. For if a man receives them carnally, he profits nothing. What then, is not His flesh, flesh? Most certainly. How then says He, that the flesh profits nothing? He speaks not of His own flesh, (God forbid!) but of those who received His words in a carnal manner. But what is understanding carnally? It is looking merely to what is before our eyes, without imagining anything beyond. This is understanding carnally. But we must not judge thus by sight, but must look into all mysteries with the eyes within. This is seeing spiritually. He that eats not His flesh, and drinks not His blood, has no life in him. How then does the flesh profit nothing, if without it we cannot live? Do you see that the words, the flesh profits nothing, are spoken not of His own flesh, but of carnal hearing?
