60 Many therefore of his disciples, when the heard [this], said, This is a hard saying; who can hear it? 61 But Jesus knowing in himself that his disciples murmured at this, said unto them, Doth this cause you to stumble? 62 [What] then if ye should behold the Son of man ascending where he was before? 63 It is the spirit that giveth life; the flesh profiteth nothing: the words that I have spoken unto you are spirit, are are life. 64 But there are some of you that believe not. For Jesus knew from the beginning who they were that believed not, and who it was that should betray him. 65 And he said, For this cause have I said unto you, that no man can come unto me, except it be given unto him of the Father.
Matthew Henry's Commentary on John 6:60-65
Commentary on John 6:60-65
(Read John 6:60-65)
The human nature of Christ had not before been in heaven, but being God and man, that wondrous Person was truly said to have come down from heaven. The Messiah's kingdom was not of this world; and they were to understand by faith, what he had said of a spiritual living upon him, and his fulness. As without the soul of man the flesh is of no value, so without the quickening Spirit of God all forms of religion are dead and worthless. He who made this provision for our souls, alone can teach us these things, and draw us unto Christ, that we may live by faith in him. Let us apply to Christ, thankful that it is declared that every one who is willing to come unto him shall be made welcome.